STOCKHOLM — A day after two explosions struck central Stockholm, killing the man suspected of being a suicide bomber and wounding two other people, investigators began to focus on the possibility that the person responsible was a disaffected Iraqi-born Swede who had attended college in Britain.

Reports in British and Swedish newspapers, citing government sources, identified the man as Taimour al-Abdaly, a 28-year-old Sunni Muslim whose family moved to Sweden from Baghdad in 1992. Attempts by The New York Times to confirm the reports independently were not immediately successful, and Swedish officials declined to comment, saying the bomber’s identity was part of the investigation.

But the suspect’s possible link to Britain was reinforced Sunday night when the Metropolitan Police in London said officers were searching a property at an address in Bedfordshire, the county in which Mr. Abdaly is believed to have attended college. A spokesman said the search was made “in connection with the incidents in Stockholm.”

Sweden’s prime minister, Fredrik Reinfeldt, told reporters at a news conference that an investigation led by the Swedish intelligence agency Sapo was still working to establish links among the two explosions, the dead man found with blast wounds to his abdomen and the threatening messages sent to the Swedish news agency Tidningarnas Telegrambyra shortly before the explosions.

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