BRUSSELS, Brussels (AP) _ European Union antitrust regulators invited third-party comment Friday on their probe into British Airways' expanded alliance with American Airlines.

The airlines have asked U.S. and European regulators to grant immunity from antitrust laws for their plans for closer ties on trans-Atlantic routes.

The airlines announced Aug. 3 they would attempt to revive a failed alliance that would include sharing scheduling, pricing and profits on trans-Atlantic routes.

The proposal is similar to a 1996 plan that was effectively killed by U.S. and European antitrust regulators, who wanted the airlines to give up takeoff and landing slots at London's Heathrow hub so that rivals could increase service.

Other carriers were expected to raise similar complaints to the new deal. British and American airline officials argue, however, that the market has changed since then.