Antiochus then concentrated on raiding Ptolemaic possessions in Cilicia, Lycia and Caria. While attacking Ptolemy's possessions in Asia Minor, Antiochus sent a fleet to occupy Ptolemy's coastal cities in the area as well as to support Philip. Rhodes, a Roman ally and the strongest naval power in the area became alarmed and sent envoys to Antiochus saying that they would have to oppose him if his fleet passed Chelidonae in Cilicia because they didn't want Philip to receive aid. Antiochus ignored the threat and kept proceeding with his naval movements, but the Rhodians did not act because they had heard that Philip had been defeated at Cynoscephalae and was no longer a threat.