British police searched a house north of London overnight in connection with a suspected terrorist attack in Stockholm over the weekend.
According to Scotland Yard, the search took place on Sunday night. No arrests were made and no dangerous materials found, the Press Association said.
One person, believed to be the attacker, was killed and two people were injured in the blast Saturday evening in a busy shopping area in the Swedish capital.
Initially, a car exploded at the intersection of Drottninggatan and Olof Palmes Gata streets. A second blast then went off in the nearby street of Bryggargatan, where a man's body was discovered.
British and Swedish media reported that the suspected attacker had been an Iraqi-born Swede, aged 28 or 29, who had studied at Bedfordshire University in England.
The reports had not been confirmed by British authorities.
"We remain in close contact with the Swedish authorities," the BBC quoted a Home Office spokesman as saying. "It would be inappropriate to comment on their ongoing investigation at this time."
According to the Telegraph newspaper, the attacker's name was Taimur Abdulwahab al-Abdaly, a former physical therapy student at Bedfordshire University in town of Luton with a wife and three young children who still live there.
The Telegraph reported that Abdulwahab’s father, Thamer, 61, lives in Tranas, south of Stockholm.
Thamer said his son had been at the family home on Friday and drove off on Saturday without saying where he was going.
Swedish police said they believe the attacker acted by himself but have so far not ruled out other options. An explosives expert of the Swedish military said the bombing appeared to be the work of an "amateur."
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