A massive terror attack was foiled Saturday night when an IAF air strike on two vehicles near the southern Gaza Strip's border with Egypt killed two Palestinians, including an Islamic Jihad operative, and wounded 21 others, the IDF said. The army said that one of the vehicles was carrying Islamic Jihad operatives and was filled with explosive devices including suicide bomb belts. The group, said the IDF, was on its way to carry out a huge terror attack against Israelis. Islamic Jihad said some of its members were in at least one of the two vehicles hit in the IAF strike near the Rafah Crossing - a Mercedes saloon and a pickup truck parked alongside. Eyewitnesses said several blasts came from the pickup after the attack, suggesting that it had been carrying explosives. Three of those wounded were Islamic Jihad operatives and were in serious condition. Islamic Jihad claimed responsibility for firing a rocket into a Sderot neighborhood shortly before the air strike, but it was not clear if they were the same group hit by the IAF strike. Two more rockets were fired at the western Negev on Saturday night. No casualties or damage were reported as a result of the Kassam attacks.