"It has come to the point where every Thai side needs to find a peaceful way out, and quickly," said Army Commander-in-Chief General Prayuth Chan-ocha in an announcement made on Channel 5 TV.
Prayuth dismissed persistent rumours that the army would step in to solve the stalemate.
"Soldiers will not take action because if we use force there would be resistance, and the country might collapse," Prayuth said.
DPA