A hijacker took over a Turkish Airlines flight on Monday and ordered it flown to a Black Sea port, where he released all aboard unharmed and surrendered, government and airline officials said.

The man claimed to have a bomb in a package, airline chief Yusuf Bolayirli said. It was not immediately clear if his claim was true.Transport Minister Ahmet Denizolgun said there had been 78 passengers aboard, in addition to eight crew members. Earlier media reports had put the number of passengers at 76.

There had been conflicting reports on the number of hijackers as well. Bolayirli said there was only one; initial media reports said one or more.

There were no reported injuries during the two-hour ordeal, which came on what had been a scheduled flight from Ankara to Istanbul on Monday night.

There was no immediate word on motive.