Families of French engineers killed in a 2002 bomb attack in Pakistan will lodge a manslaughter suit against former president Jacques Chirac, their lawyer said Friday. Their civil suit for manslaughter and endangering life also targets former prime minister Dominique de Villepin and former executives involved in arms deals linked to the case, the families lawyer Olivier Morice told a foreign news agency. Investigators suspect the bombing in Karachi in 2002, which killed 11 French engineers and at least three Pakistanis, was revenge for the cancelling by Chirac of commissions for officials in the sale of submarines to Pakistan. Our complaint is going to target how the decision was arrived at to stop the commissions, Morice told agency, saying the suit was prompted by recent testimony from arms executives in the case. Morice on Thursday also called for Frances current President Nicolas Sarkozy to be questioned by a magistrate investigating the affair, a complex case linked to allegations of illegal political funding.