Police have detained 12 suspected Islamic State militants in the Turkish capital, Ankara, and were searching for eight others, state media reported, as the US Embassy was closed due to an unspecified security threat.

There has been a "dramatic" jump in the scale and pace of the threat facing Britain.

UPDATE 10pm: Police in Rotterdam stopped a van with Spanish licence plates containing a number of gas bottles close to the venue of a concert by an American rock band that was cancelled following a threat, the mayor of the Dutch port city said.

Garda HQ will conduct a fresh review of security strategies after the London terrorist attack and are monitoring the reaction of a small number of jihadist sympathisers here.

French schools are to hold three security drills a year, including one in which an alleged assailant enters their premises.

Two people have been arrested at Heathrow Airport on suspicion of committing terrorism offences.

US law enforcement officials are today investigating reports of suspicious packages on cargo planes in the eastern US cities of Philadelphia and Newark, New Jersey.

The US still believes that Europe is at grave risk from a terrorist attack, a government official warned today.

The British government has today raised its terror warning to the highest level for citizens living in the United Arab Emirates.

German Chancellor Angela Merkel today called on Europeans to take a joint stand against Islamic terrorists and defend what she called the European Union’s core values of democracy and tolerance.

Britain's security Minister has claimed the fight against terrorism in the UK could take 15 years.

Pakistan's prime minister today told the United States not to criticise his country's anti-terrorism efforts, saying it could prove counterproductive.

A jury was sworn in today to try six men accused of plotting to murder people in the July 21 alleged attempted bombing.

The head of MI5 has given a chilling assessment of the scale of the terror threat in the UK, warning it will last “a generation”.

US President George Bush, delivering the latest in a series of speeches on the war on terrorism, admitted to setbacks in Afghanistan today, particularly in the training of police.

The war in Iraq is breeding deep resentment of the US that is likely to get worse before it gets better, federal intelligence analysts conclude in a report at odds with President George Bush’s talk of a world growing safer.

US president George W Bush today embarked on nearly 24 hours of sombre observances at the three sites where 9/11 terrorists wrought death and destruction and transformed his presidency.

British chancellor Gordon Brown paid tribute today to the Tony Blair's “courageous” leadership and said that Britain stood “shoulder to shoulder” with the US ahead of the fifth anniversary of the September 11 attacks.

The Bush administration proclaimed progress in undermining global terrorism today, but said the enemy has adjusted to US defences and that “America is safer but we are not yet safe”.

Ryanair says it plans to follow through with its threat to sue the British government over new anti-terrorism restrictions.

Ryanair is expected to clarify later today whether will follow through with its threat to sue the British government over new anti-terrorism restrictions.

The interrogation of 12 men who were removed from a US plane after they aroused the suspicions of air marshals and crew produced no evidence of terrorism, the Dutch justice minister said today.

A man is being questioned on suspicion of terrorism offences after a raid on a house in the UK, police said today.

UK airport security equipment can only detect some of the wide range of liquid explosives now being used, it was revealed today.

British police are continuing today to question nine suspects held in custody over the alleged airline bomb plot.

A US airliner bound for India was diverted to Amsterdam under escort of two Dutch F-16 jet fighters, after air marshals and the crew grew suspicious of several passengers they saw exchanging mobile phones as the plane was taking off.

British police are to seek more time to question some of the 11 suspects still being held in connection with the foiling of an alleged plot to bomb transatlantic airliners.

Eleven people were remanded in custody today in connection with an alleged plot to blow up transatlantic airliners.

Eleven people, including a young mother of an eight-month-old baby and a 17-year-old youth, will appear in court today over the alleged UK airliner bomb plot.

A young mother of an eight-month-old baby and a 17-year-old youth were among 11 people charged in Britain tonight in connection with the alleged airliner bomb plot.

Eleven suspects arrested in relation to the alleged airliner bomb plot have been charged, Britain’s Crown Prosecution Service announced today.

The probe into the plot to blow up trans-Atlantic passenger planes was continuing, Pakistan’s Foreign Ministry spokeswoman said today, and that the “full picture” would be eventually revealed to the public.

A British passenger plane en route to an Egyptian holiday resort made an emergency landing today in Brindisi, southern Italy, after the pilot reported that a bomb was suspectedto be on board.

Pakistan has told the US military that an Arab al-Qaida operative who masterminded the London jetliner terror plot is hiding in mountainous terrain in north-eastern Afghanistan, an intelligence official said today.

A West Virginia airport terminal was evacuated tonight after two bottles of liquid found in a woman’s carry-on luggage twice tested positive for explosives.

A woman on a trans-Atlantic flight diverted to Boston for security concerns yesterday, passed several notes to crew members and urinated on the cabin floor.

Gail Marcinkiewicz, spokeswoman for the FBI in Boston, confirmed that Catherine Mayo was carrying banned items in her carry-on bag, including a screwdriver, an unspecified number of cigarette lighters and matches.

Authorities in Pakistan are hunting a British Muslim of Afghan origin, an Eritrean national and a Pakistani linked to the foiled transatlantic plane terror plot, an intelligence official said today.

Airline passengers soon will have their names checked against the US “no-fly” list before flights take off for the US, the homeland security chief said.

A British man identified by Pakistan as a key suspect in the alleged plane terror plot has links with outlawed Pakistani militant group Jaish-e-Mohammed and is related by marriage to its leader, an intelligence official and a relative said.

BA said it aimed to return misplaced luggage caught up in the British terror-alert chaos to 5,000 passengers by the end of today.

Authorities evacuated a terminal in the port of Seattle tonight after bomb-sniffing dogs alerted handlers to a container.

Top Pakistani intelligence agents said today the alleged terror suspects arrested last week over an alleged plot to blow up a number of planes crossing the Atlantic did not have had the experience to carry out the attack.

An overseas flight from London’s Heathrow Airport to Washington, D.C. was diverted to Boston today after the pilot declared an emergency because of a passenger disturbance, the airline said.