The following day, Libya accused the U.S. of attacking two unarmed reconnaissance planes which were on a routine mission over international waters. Libyan leader, Muammar Gaddafi, called for a United Nations emergency session to take up the incident. The U.S. claimed the American air crews acted in self-defense due to demonstrations of hostile intent by the Libyan aircraft. Two days after the engagement, the Pentagon released photographs taken from the videotapes on the F-14s which, according to U.S. naval intelligence analysts, showed the lead MiG-23 armed with two AA-7 Apex missiles and two AA-8 Aphid missiles. The AA-7 can be either a semi-active radar-homing missile or an infrared-homing (heat-seeking) missile, and it can be fired at another aircraft from head-on. The imagery was used to prove the Libyan fighters were armed and helped support the U.S. position that the MiG-23s were hostile.