Stockholm/London, Dec 13 (DPA) British police searched a house north of London in connection with a suspected terrorist attack in Stockholm over the weekend.

According to Scotland Yard, the search took place about 2300 GMT Sunday. 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 the University of Bedfordshire 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."

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".