Sweden suicide bomber: Taimur Abdulwahab al-Abdaly was living in Britain

Taimur Abdulwahab al-Abdaly tried to set off a car bomb packed with gas canisters in a busy shopping street in Stockholm. The car caught fire and the bomber fled the scene before blowing himself up 300yd away 15 minutes later, injuring two bystanders. It emerged last night that Abdulwahab, who was due to turn 29 yesterday, is a former physical therapy student at Bedfordshire University in Luton, and that his wife and three young children still live in the town. MI5 is now investigating possible links with extremists in Luton, whether the bomber was radicalised at the university and claims that he was helped by an extremist group in Yemen, the base for al-Qaeda in the Arabian Peninsula.

The suicide bombing follows an attempt by Umar Farouq Abdulmutallab, a former student at University College London, to blow himself up last Christmas on a flight to Detroit. Abdulmutallab had trained in Yemen, but had become increasingly radical during his time in Britain. The security services and police are concerned that British university campuses have become breeding grounds for extremism. Neighbours told The Daily Telegraph last night that they had last seen Abdulwahab at the 1930s semi-detached house in Luton, Beds, two and a half weeks ago. The couple have two young girls and a baby son. His wife, Mona, a Swedish citizen, is said to run a home beauty company.

Reports from Sweden said Abdulwahab was shouting in Arabic and carrying six pipebombs, one of which exploded, along with a rucksack full of nails and explosives. A paramedic said the bomber had no injuries to the face or body in general but looked as if he had been carrying something that exploded in his stomach. One witness said the bomber had worked as a sandwich board advertiser in the Drottninggatan shopping area. Carl Bildt, the Swedish foreign minister, said it was “a most worrying attempt at a terrorist attack”, adding that it “failed – but could have been truly catastrophic”. Theresa May, the Home Secretary, said: “The Swedish government have indicated they believe this was a terrorist attack. We will be talking to them about the details of that attack.”