Two friends of Boston Marathon bombing suspect Dzhokhar Tsarnaev pleaded not guilty in federal court to charges of conspiracy to obstruct justice and obstructing justice with intent to impede authorities.

His arm in a cast, Boston Marathon bombing suspect Dzhokhar Tsarnaev pleaded not guilty to terrorism charges yesterday in his first courtroom appearance since his capture at the end of a chaotic week in April.

Boston Marathon suspect Dzhokhar Tsarnaev downloaded bomb-making instructions from an al-Qaida magazine, legal documents revealed.

A funeral home director was today trying to find a cemetery that would bury a suspect in the Boston Marathon bombings.

Boston Marathon bombing suspect Dzhokhar Tsarnaev was yesterday charged by federal prosecutors in his hospital room with using a weapon of mass destruction to kill — a crime that carries a possible death sentence.

Boston plans to mark the traumatic week since the marathon bombings with a mournful silence as the city returns to its bustling commute.

Tamerlan Tsarnaev, 26, and his brother Dzhokhar, 19, broke their cover hours after authorities released photographs of the suspects.

Boston-area residents came together in prayer and reflection yesterday after a tumultuous week as the lone surviving suspect in the Boston Marathon bombing lay hospitalised under heavy guard apparently in no shape for interrogation.

The young Irishman living next door to the house where Boston bomber Dzhokhar Tsarnaev was found hiding in a boat has said “he could have killed my family”.

As the lone surviving suspect in the Boston Marathon bombing lay in hospital under heavy guard, the American Civil Liberties Union and a federal public defender raised concerns about investigators’ plan to question Dzhokhar Tsarnaev without reading him his rights.

Boston Marathon bombing suspect Dzhokhar Tsarnaev was still in hospital this morning, in a serious condition and under heavy guard.

The enhanced police presence for tomorrow’s London Marathon will remain in place despite the death and capture of the Boston Marathon bombing suspects, Scotland Yard said today.

Celebrations erupted in Boston as the capture of the remaining marathon bombing suspect was announced in a tweet from police.

The 19-year-old college student wanted over the Boston Marathon bombings is seriously ill in hospital and unable to be questioned after a manhunt that left the city virtually paralysed and his older brother and accomplice dead.

The suspect being hunted in the Boston Marathon bombing is in a boat stored in a Watertown neighbourhood, a law enforcement official says.

No explosives were found at the home of one of the Boston Marathon bombing suspects last night after a day that saw the city shut down.

The father of the Boston bombing suspects, Anzor Tsarnaev, claims his sons were set up.

State Police have warned residents that they will do a controlled explosion of items found in Norfolk Street in Cambridge where the Boston bombing suspects lived.

Police in Boston have surrounded a building in the suburb of Watertown as they hunt a teenager they suspect was involved in the bomb attack on the city's marathon.

All Boston residents have been ordered to stay in their homes as the search for the surviving suspect in the marathon bombings continues after a night of violence that left the other suspect - reportedly his brother - dead.

The two suspects in the Boston Marathon bombing were from the Russian region near Chechnya, sources have told the Associated Press, as a massive police manhunt continues for the surviving suspect.

Sources have told the Associated Press that that the Boston bomb suspects are from a Russian region near Chechnya and have lived in the US for at least one year.

One of the two suspects in the MIT officer shooting is dead but the other, who is tied to the Boston marathon bombing, remains at large, Boston police said.

A police officer has been shot dead and armed police have converged on a neighbourhood near Boston amid reports of explosive devices being used against them.

A police officer shot on the campus at the Massachusetts Institute of Technology has died from injuries.

A winter storm packing fierce winds, frigid temperatures and snow pounded large parts of US north-east and mid-west today, causing travel woes as well as dangerous