Iraq , face dangerous circumstances every day and have navigated the vast majority of those situations without any violence , Prince told CNN . The guards just try to do their jobs , and are `` not trying to make any trouble , '' he said . The Iraqi government accuses Blackwater guards of opening fire without provocation on civilians in a crowded area in Baghdad on September 16 , killing 17 and wounding 27 . Survivors told FBI investigators Blackwater guards shot at civilians presenting no threat . Watch a Blackwater witness describe his account '' The first U.S. soldiers to arrive on the scene after the incident told military investigators they found no evidence contractors were fired upon , a source familiar with a preliminary U.S. military report told CNN . The soldiers found evidence suggesting the guards fired on cars attempting to leave and found weapon casings on the scene matching only those used by U.S. military and contractors , the military source said . But Prince on Sunday told CNN , `` In the incident reports I 've seen , at least three of our armored vehicles were hit by small arms fire , incoming ,
WASHINGTON -LRB- CNN -RRB- -- The head of Blackwater USA on Sunday rejected a mounting series of reports suggesting the private contractor 's security guards opened fire on innocent Iraqi civilians last month . Blackwater CEO Erik Prince said Sunday that guards `` definitely '' faced insurgent fire September 16 . `` There was definitely incoming small arms fire from insurgents '' in the September 16 incident in Baghdad , founder and CEO Erik Prince told CNN 's Wolf Blitzer on `` Late Edition . '' There was no `` deliberate violence , '' committed by Blackwater employees , he added . Still , when asked whether it is possible someone with Blackwater `` screwed up '' in the incident , Prince replied , `` Certainly it 's possible . '' He said he expects the FBI investigation to provide many answers . Meanwhile , U.S. and Iraqi officials continue discussing Baghdad 's demand that Blackwater be expelled from Iraq within six months , The Associated Press reported Sunday . American officials are also coming up with ways to fill the security gap if Blackwater is forced to leave , AP reported . Blackwater guards , protecting U.S. officials in