KARACHI: March 5, 2008. (AFP) A Pakistan court Wednesday sentenced an Al-Qaeda-linked militant to death over a 2006 suicide attack which killed a US diplomat and three other people in the southern city of Karachi, lawyers said. Anwarul Haq was convicted by the anti-terrorism court on four counts in connection with the bombing outside the US consulate in Karachi on March 2, 2006 -- the eve of a visit to Pakistan by US President George W. Bush. "The court found the suspect guilty in the incident and sentenced him to death on four counts," public prosecutor Naimat Ali Randhawa told AFP. The court also sentenced Haq to 85 years imprisonment and fined him 1.5 million rupees (25,000 dollars) in connection with the 25 people wounded in the blast. Another suspect, Usman Ghani, was cleared of all charges, Randhawa said after the closed-door hearing in Karachi`s central jail, adding that the prosecution planned to appeal. He said the two belonged to an Al-Qaeda-linked extremist group. Pakistani authorities have already identified another militant, Raja Mohammad Tahir, as the bomber who rammed his explosives-laden car into a diplomatic vehicle, killing diplomat David Foy and three Pakistanis. Haq and Ghani were arrested in August 2006. Police at the time said they were linked to Jaish-e-Mohammed, or "Army of the Prophet Mohammed", an Al-Qaeda-linked outfit banned by key US ally President Pervez Musharraf. Two months after the attack a statement posted on the Internet, purportedly by Al-Qaeda, claimed responsibility. It was signed "Al-Qaeda of the Afghanistan Jihad (holy war)." Hundreds of people have died in suicide bombings and other attacks -- several of them in Karachi -- since Musharraf joined the US-led "war on terror" in 2001 after the September 11 attacks on the United States. In the last major attack in Karachi, 139 people were killed in a double suicide bombing on the homecoming parade of exiled former premier Benazir Bhutto in October. Meanwhile police Wednesday were questioning five people over a double suicide attack on the Pakistan Naval War College in the eastern city of Lahore on Tuesday, which left five people dead, police said. The men, including three brothers, were being interrogated in connection with a motorcycle used by the two suicide bombers, said Masud Aziz from Lahore`s Organised Crimes police. "No arrest has so far been made, however we have traced out the correct registration number of the motorcycle used by the two bombers and are trying to find out its last buyer," he said. "The heads of the bombers have been recovered," he said.