Swedish Chief Prosecutor Thomas Lindstrand said Monday that the man who killed himself in a suicide bomb attack in central Stockholm on Saturday was up to 98 percent identified.

Swedish Chief Prosecutor Tomas Lindstrand (C) and Security Police official Anders Thornberg (L) attend a news conference in Stockholm, Sweden, Dec. 13, 2010. Tomas Lindstrand and Anders Thornberg annouced Monday that Swedish police had made progress on the investigation of the two explosions that hit central Stockholm on Saturday night. The identity of the suicide bomber has been approximately confirmed. [Wu Ping/Xinhua]

"The man is up to 98 percent identified, but we have no official identification yet. No DNA, no family identification," said Lindstrand, who is in charge of the investigation of the terrorist incidents.

"He was completely not known from the police's previous work, and there was no earlier information about him."

The attacker was identified as Tamouir Abdulwahab. He was born in 1981 and came to Sweden in 1992 from the Middle East, but Lindstrand refused to say specifically which country.

Abdulwahab became a Swedish citizen in 1992, but he also lived in England for many years, according to preliminary investigation.

Lindstrand told reporters that the car exploded in the center of the city was registered under the name of Abdulwahab, who bought it at the end of November.

The man had a bomb belt, a backpack with a bomb and another object, Lindstrand said.