Boston 'Bombers' Are Brothers From CHECHNYA: One Suspect is Killed in shoot-out and second is on the loose with a BOMB strapped to his chest after running gun battle that left cop dead

• Terrorists: Tamerlan Tsarnaev (left) was killed during an exchange of gunfire with police on Wednesday night. His younger brother Dzhokhar (right) is still on the run and reportedly has explosives strapped to his body

• Tamerlan Tsarnaev, 26, ‘Suspect 1′ killed after explosions and machine gun fire in Boston suburb of Watertown
• Manhunt continues for Dzhokhar Tsarnaev, 19, ‘Suspect 2′ who was seen on CCTV wearing a white baseball cap as police name him a ‘terrorist’
• Dzhokhar Tsarnaev posted online he will ‘kill everyone because we killed his brother’
• Two people taken into custody at the home in Cambridge where the brothers grew up
• Both suspects are ‘brothers from the Russia region near Chechnya and had lived in U.S. since 2002′
• Police chief: ‘Terrorist on the loose who wants to kill people – do not open your door’
• City in lock down: Mass public transport closed, flights canceled, armed officers conduct house-to house searches
• Police officer critically wounded in exchange of gunfire after suspects threw explosives during car chase

By James Nye, Louise Boyle, Simon Tomlinson and Jill Reilly

Daily Mail

Scores of heavily-armed police swarmed a Boston suburb this morning as the net tightened around an ‘armed and dangerous’ suspect of the marathon bombings who remained at large.

During a dramatic night, two suspects killed an MIT police officer and hurled explosives at police in a car chase and gun battle that left one of them dead and his brother on the loose.

‘Suspect 2′, 19-year-old Dzhokhar Tsarnaev, seen on CCTV wearing a white baseball cap, is on the run and reportedly has explosives strapped to his body.

The terrorist, dubbed ‘Suspect 1′ by the FBI, has been named as Tamerlan Tsarnaev, 26. He died in hospital from gunshot wounds and possible blast injuries after a fierce gun battle rocked the Watertown area hours after a police officer was shot dead at the nearby MIT campus.

The entire city of Boston is on lock down with residents warned to stay indoors, public transport shut down, taxi service suspended and a no-fly zone around the city.

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Tamerlan reportedly had a bomb strapped to his chest when he was killed. The stolen vehicle has now been recovered by investigators.

Dzhokhar Tsarnaev posted online he will ‘kill everyone because we killed his brother’, according to a dispatcher in Watertown.

Explosions were heard at a Boston home this morning as police continue to hunt for a marathon bombing suspect and another possible accomplice.

Two people, one believed to be the mother of the men, have been taken into custody at the home in Cambridge where the brothers grew up but are not considered suspects. The home is surrounded by FBI and the bomb squad is on the scene.

A transit police officer was critically wounded in the exchange of gunfire with the suspects.

Dzhokhar and Tamerlan Tsarnaev are believed to be legal immigrants to the U.S., from the Russian region of Chechnya which has been plagued by an Islamic insurgency stemming from separatist wars.

Dzhokhar was born in Kyrgyzstan, according to NBC. His brother Tamerlan was reportedly born in Russia. The brothers are believed to have moved to America with their family in 2002 or 2003.