COLOMBO, Sri Lanka - An official in Sri Lanka says at least one rebel plane has dropped a bomb on the country's capital, hitting a government office in the heart of Colombo.

There's no immediate word on whether the bomb caused any casualties, but the government claims to have shot down a rebel aircraft and recovered the pilot's body.

Anti-aircraft fire lit up the sky and the city's power was cut as searchlights sweep the sky.

Military spokesman Brig. Udaya Nanayakkara says at least one Tamil Tiger rebel plane dropped at least one bomb on the capital.

The attack amounts to a major embarrassment for Sri Lanka's government, which had claimed to have destroyed all the rebels' hidden runways and rendered its small air wing powerless.

The rebels had previously used light aircraft to attack the capital.

A major army offensive in recent months has boxed the rebels' main fighting force into a small strip of land in the country's north.