An inquiry has found that the CIA used at least two secret detention centres in Lithuania after the September 11 terrorist attacks on the US.

The report, by a Lithuanian parliamentary committee, says that in 2005 and 2006 the US intelligence agency used specially chartered planes to land in Lithuania.

The committee found that no Lithuanian officials were allowed near the aircraft, nor were they told who was on board.

A former horse-riding stable outside the capital Vilnus was used as an interrogation centre.

The report appears to absolve Lithuania's political leaders of responsibility for any human rights violations that may have been committed by the CIA.

It says even the country's president was unaware of exactly what the US intelligence service was doing.