BERLIN (AFP) - German lawmakers voted Wednesday to investigate a deadly airstrike in Afghanistan that reportedly killed dozens of civilians amid a cover-up that forced Germanys top soldier to resign. Pressure has mounted on Chancellor Angela Merkels govt over the Sep4 bombing of two fuel trucks near Kunduz, northern Afghanistan, carried out on the orders of German Nato commander Georg Klein. Members of the German parliaments defence commission agreed on the need for an investigation, but are yet to set out how it will be conducted. The Social Democrats and the Greens want public hearings, but Merkels centre-right Christian Democratic Union party want any testimonies to be given behind closed doors. Merkels spokesman Ulrich Wilhelm said Wednesday that the German leader will not appear before the commission. But Green defence commission representative Omid Nouripour insisted that he will call for the German chancellor to testify in person. According to NATO, the death toll in the strike including civilians was up to 142. Former defence minister Franz Josef Jung resigned from his position as labour minister over the allegations. He served as defence minister at the time and had previously insisted only Taliban terrorists died in the attack. Armed forces chief of staff General Wolfgang Schneiderhan and another senior defence ministry official also stepped down over the affair.