[Harry!]

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Army bomb disposal experts have carried out a second controlled explosion near a house on a Bristol cul-de-sac after police discovered more "suspect" materials.

Soldiers from the Royal Logisitics Corps returned to Comb Paddock to conduct two more blasts close to the home of a 19-year-old terror suspect, named by Sky sources as Andrew Ibrahim.

A third explosion is also expected this morning on the cul-de-sac, whose residents were evacuated earlier.

Ibrahim was arrested under the Terrorism Act last night after covert inquiries prompted by an intelligence tip-off.

Detectives have been granted seven days to hold the teenager, who is understood to have recently converted to Islam.

Around 30 more residents from Comb Paddock were moved from their homes this morning, following evacuations last night.

A planned explosion late on Friday was postponed until today because of a lack of sandbags.

Earlier, Sky News reporter Paul Harrison, in Bristol, said a "suspicous liquid" found on Ibrahim's property was being exploded.

Avon and Somerset Police now have until 1.40pm next Thursday to hold the suspect.

Assistant chief constable Jackie Roberts revealed that the man was not arrested at the house but somewhere else in the city.

"This is a genuine incident which we are taking extremely seriously."

She added: "At this stage I cannot rule out that he was acting alone or that there won't be further arrests."

Neighbours described Ibrahim, who they said had not been in the house long, as heavily built and often seen wearing traditional Muslim dress and carrying a satchel.

Others said they had confronted him about "loud chanting" just a few days ago.

Local Muslim leader Farooq Siddique said Ibrahim was "not known" to Bristol's Muslim community.

He said: "This is obviously a very difficult time for the Muslim community in Bristol. It is a blow to community relationships in the city. We want the police to be allowed to do their jobs as simply and as quickly as possible. We need to be united in this."

A source who claimed to have worked with Ibrahim said he believed Ibrahim had recently enrolled on a course at the University of the West of England.

He said: "He was struggling in life but I had no idea he had become a Muslim before I saw him two weeks ago.

"I could not believe my eyes. He was dressed in full robes and had a beard. He must have undergone a massive change in identity."

The bomb disposal team was initially called to the suspect's home to carry out a controlled explosion outside the house at around 2am on Friday.