Lebanese media reported Sunday afternoon that Israeli war planes were spotted in the skies above southern Lebanon. It appeared the pilots were rehearsing attacks on targets in the region, local sources told media outlets. Both Syria and Lebanon accused Israel of carrying out air strikes on a convoy last Wednesday that was transporting Russian-made surface-to-air missiles from the Damascus area towards the border with Lebanon. The two countries also accused Israel of bombing the Jamraya military research center, where chemical weapons were being processed. At least two people died in the attack, and a number of others were wounded. Among the casualties were alleged members of Iranâ€™s elite Revolutionary Guards. For the first time, Israeli Defense Minister Ehud Barak this weekend obliquely acknowledged that indeed, Israel had carried out the strike, which he referred to as â€œproof that when we say something, we mean it." â€œWe say that we donâ€™t think it [Syria] should be allowed to bring advanced weapons systems into Lebanon,â€ he told top international diplomats and defense officials at a conference Sunday in Germany.