BAA has begun legal action against Ryanair to force it to pay it a recent 15% increase in airport charges at Stansted airport in London, writes the Irish Times. Ryanair wrote to the BAA in May to inform it that it would be withholding the increase in airport charges at Stansted, which took effect on April 1st. As it's already known, FR claimes that the increase constitutes "excessive pricing" and is an abuse of BAA's "dominant position in the London market and contrary to the public interest".