Army bomb disposal experts carried out a third controlled explosion at the home of a 19-year-old terror suspect today.

A loud crack from the detonation was audible at Comb Paddock in Bristol.

Residents were evacuated from their homes following the arrest of the teenager, named locally as Andrew Ibrahim, which came after police received an intelligence tip-off.

The blast was the third carried out in the quiet cul-de-sac in the Westbury-on-Trym area of the city since his arrest on Thursday and is expected to be the last detonation to take place on Saturday.

However, police are still working at the address and local residents, some of whom have spent two nights away from home, are still not being allowed to return.

The arrested man is understood to have recently converted to Islam.

Police questioning him have been granted seven days to hold him after his arrest on Thursday.

Bomb disposal experts were initially called to the suspect's home to carry out a controlled explosion outside the house, a nondescript 1950s red-brick terrace property, at around 2am on Friday.

Neighbours heard a loud blast and were given letters informing them about the arrest.

At a press conference, police, who refused to officially name the suspect, did not rule out further arrests. Officers now have until 1.40pm next Thursday - a week after his arrest - to hold the suspect.