German Chancellor Angela Merkel is urging Field Marshal Khalifa Hifter to end his self-styled Libyan National Army's push on Tripoli, saying there can be no military solution to the country's problems.

Merkel's spokesman Steffen Seibert said Thursday that Merkel made the comments in a telephone call to Fayez Sarraj, the leader of the U.N.-backed transitional government in Tripoli.

The oil-rich North African country is now governed by rival administrations — a U.N.-backed government in Tripoli and the west and Hifter and his supporters in the east

Seibert says "the chancellor condemned the advance of General Hifter's troops on Tripoli. The German government urgently demands that General Hifter and his supporters immediately end all military operations."

Merkel also called for all parties involved to return to the negotiation table.