Theme park operator Six Flags has reported increases in both revenues and attendance for the first quarter of 2011.

Revenues for the three months to 31 March 2011 were US$61m, (41m euro, £37m) an increase of US$4m (7 per cent) compared to the same quarter in 2010.

Adjusted EBITDA showed a loss of US$49m, an improvement of $11m over the first quarter 2010.

Jim Reid-Anderson, chair, sresident and CEO, said: "The first quarter was a great start to our 2011 season."

"Our employees continue to effectively execute our business strategy, and we are in the midst of unveiling one of the most exciting line-ups of innovation in rides, attractions and shows in a decade."