Sri Lankan security forces killed at least 65 Tamil Tigers in a week of intense fighting that further reduced the territory under rebel control, the military said on Sunday. The Tigers have been driven back into just 73 square kilometres (28 square miles) of jungle, military spokesman Udaya Nanayakkara said, having controlled large swathes of the north and the east of the island less than two years ago. Officials say the rebels are increasingly desperate and may launch more dramatic attacks after their air strike on the capital Colombo on Friday, when two light aircraft were used in suicide missions that killed two people. But the government said that the Liberation Tigers of Tamil Eelam (LTTE) no longer had any air power after the planes were shot down. "The security forces have put in the last nails on the LTTE's rudimentary air capability," it said in a statement on Sunday.