British police are making progress toward identifying one person involved in last week's London bomb attacks, which left more than 50 dead and 700 others injured, according to local media Tuesday.

The suspect who was responsible for a bus explosion last Thursday morning will soon be named, The Financial Times quoted an unnamed official as saying.

"I think we are going to see photographs of one or more suspects being posted within days," said the official, who was involved in international efforts to find the bombers.

In a separate report, The Times newspaper said forensic pathologists have speculated that one of the two bodies found inside the wrecked bus might have been the bomber.

Experts said the bus bomb might have exploded accidentally as being carried by the terrorist.

Meanwhile, the Daily Mirror said the police had placed up to 100 suspects considered the "most likely" to have been involved in the attack, among whom were British residents known to have been trained in al-Qaida-type camps overseas.

In the United States, the National Broadcasting Company (NBC) television reported that British investigators have found fingerprints on bomb materials in the London attacks, adding that at least four operatives are believed to have taken part in the attacks.

NBC said the investigators believed that the bombers first congregated at the King's Cross Tube station, and then set out to plant the devices.

Source: Xinhua