Police in Turkey have detained 74 suspects who are alleged members of the Islamic State group, the country's official news agency has said.

The waters around Istanbul have turned a striking shade of turquoise.

The Turkish government is taking steps to keep Istanbul's main airport and its national carrier, Turkish Airlines, outside the scope of new aviation restrictions imposed by the US and UK.

A helicopter crashed in the outskirts of Istanbul on Friday, reportedly killing at least five people.

They believe he was among the planners of the new year nightclub massacre that killed 39 people.

The man suspected of killing 39 people in a nightclub attack in Istanbul on New Year’s Day has been formally arrested.

An armed police officer receiving psychiatric treatment caused panic at an Istanbul hospital when he barricaded himself into a room and attempted to commit suicide.

Update 10.18am: A suspect arrested last night has confessed to carrying out the attack an Istanbul nightclub on New Year's Eve which killed 39 people, according to Istanbul governor Vasip Sahin.

There are reports that two men have been arrested in connection with the Istanbul nightclub attack.

Police have carried out a series of raids and arrested 12 people as they hunt the gunman behind an attack in Istanbul.

Police in Istanbul are understood to have launched an operation in the city in connection with the new year nightclub attack that killed 39 people.

Turkish police have reportedly detained eight people over the Istanbul nightclub attack.

The Islamic State group has claimed responsibilitiy for attack on a popular Istanbul nightclub during New Year's celebrations, according to media reports.

Police in Turkey have detained six people in connection with a bomb blast near a police station in Istanbul in which 10 people were injured, the state-run news agency said.

Protesters have gathered in central Istanbul to voice anger after a young nurse was attacked on a bus by a man for wearing shorts.

Demonstrators have gathered in central Istanbul to protest over the rape and killing of a transgender woman and LGBT activist.

Two suspected Islamic State operatives are reported to have been detained at Istanbul's Ataturk Airport, the scene of last week's deadly triple suicide bombing and gun attack.

Police in Turkey have detained 13 people on suspicion of involvement in the deadly suicide attack on Istanbul’s Ataturk Airport.

Update 12.10pm: The Istanbul airport suicide attackers were from Russia, Uzbekistan and Kyrgyzstan, Turkish officials have said.

The death toll from the Istanbul airport suicide attack has risen to 42.

One of the attackers at Istanbul's Ataturk airport blew himself up outside, giving the other two the opportunity to get inside the terminal, Turkey's prime minister has said.

CCTV footage has emerged of the dramatic moment a bomb exploded at Ataturk Airport in Istanbul last night.

The governor of Istanbul has banned gay, lesbian and transgender individuals from holding pride parades at their usual venue, citing security concerns.

Eleven people have been killed in a car bomb attack on a bus carrying riot police during rush-hour traffic in Istanbul today.

The President says we need to find a way to move away from short term disaster responses.

The Dutch government has temporarily closed its consulate-general in Istanbul because of a "possible terror threat" and advised its citizens to avoid the area.

Three men, including two foreigners, have been arrested in Turkey suspected of planning another attack in Istanbul.

An Irish-Algerian family injured in a suicide attack in Istanbul have returned home.

My son is just back from a trip to Istanbul, a city I’ve never visited myself. When he came round to tell us about the trip and show off his photos I was intrigued by his account of seeing wild parrots in one of the city parks, writes Dick Warner.

Police in Istanbul have shot and killed two women who had earlier attacked a police station with gunfire and a hand grenade.

Turkish police have arrested one person suspected of having a direct link to the deadly suicide bombing that killed 10 German people in Istanbul’s main tourist area.

Details are continuing to emerge about the suicide bomber who killed 10 people in Istanbul yesterday.

An Islamic State suicide bomber has detonated a bomb in a historic district of Istanbul popular with tourists, killing 10 people – at least nine of them German - and wounding 15 others, Turkish officials said.

A Syria-linked suicide bomber is believed to be behind a blast in Istanbul that killed 10 people and wounded some 15 others, the Turkish president has said.

An explosion on a highway overpass near a subway station in Istanbul wounded five people and was caused by a bomb, a local mayor has said.

Hundreds of protesters have gathered outside the office of an opposition newspaper in Istanbul after two journalists were jailed pending trial for reporting on alleged Turkish arms smuggling to Syria.