Greece's largest journalist union has called a 24-hour strike, halting news programs on private and state television, over government plans to overhaul television licenses next year.

The strike on Friday coincided with a highly anticipated visit to Greece by French President Francois Hollande, which state TV continued to cover.

Greece's government says it will hold auctions for all private TV licenses next year, imposing stricter financial standards for broadcasters. The journalist union ESIEA said the measures "fail to safeguard the journalistic profession."

It was the latest confrontation between unions and Prime Minister Alexis Tsipas' left-wing government, after a general strike was called for Nov. 12 against new austerity measures.