A court Tuesday acquitted two men sentenced to death over a 2002 bombing that killed 11 French engineers, the highest number of Westerners to have died in a single attack in the country. Asif Zaheer and Mohammad Rizwan, who allegedly belonged to Al-Qaeda-linked extremist group Harkatul Mujahideen al-Aalmi, were arrested in December 2002, seven months after the attack in Karachi. In 2003, an anti-terror court convicted them on multiple counts of assisting the suicide attack, which killed 11 French engineers and three Pakistanis outside the Sheraton Hotel, and sentenced them to death and 50 years in prison. A suicide bomber rammed a Toyota Corolla sedan packed with 140 to 150 kilogrammes (300 to 330 pounds) into a bus as it collected the Frenchmen from the hotel. They were helping Pakistan build its first locally made submarine. Zaheer and Rizwan appealed to the high court in the southern province of Sindh, which acquitted the men Tuesday and ordered their release, but only if they were not wanted by police over other charges, officials said. "After considering the material available on record we are of the considered view that the prosecution has failed to prove the case against the appellants beyond any reasonable doubt," said an order from the Sindh high court.