Irish airline Aer Lingus has rejected a takeover bid by the International Consolidated Airlines Group, the parent company of British Airways.
Shares in the Dublin-based carrier surged by as much as 21 percent Thursday amid rumors of a possible bid.
Those gains were pared after IAG issued a statement confirming its proposal had been rejected by the Aer Lingus board.
Analysts long have seen IAG as a likely bidder for Aer Lingus. IAG chief executive Willie Walsh was previously chief executive of Aer Lingus before the formerly state-owned airline's 2006 privatization.
Aer Lingus operates a substantial European short-haul network and a half-dozen routes to the United States.
In recent years it has struggled to compete with larger Dublin-based rival Ryanair, which has mounted three failed takeover bids.
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