More than a dozen agents of the US Federal Bureau of Investigation examined on Sunday the site of a suicide car bombing that killed a US diplomat in Karachi last week, a local official said. Pakistani investigators suspect that Islamic militant group Jundullah carried out the attack on Thursday, just metres from the US Consulate, in a heavily guarded neighbourhood of Karachi. Five people, including the bomber, died and 52 were wounded. Jundullah, has been suspected in attacks in the past on the US Consulate, a Christian Bible studies group, a peace concert by an Indian singer and a police station in Karachi. The FBI agents collected metal pieces and took photographs of the bombing site, which has been secured behind shipping containers, scaffolding and tarpaulins, a Pakistani police investigator said. “They are investigating in their own way” to get clues about the attackers, he said. Pakistani investigators were trying to identify a severed hand recovered from the site, he said. Its fingerprints were being matched with government records, he said.