Thailand launched air strikes against Cambodia on Monday as a new wave of fighting erupted between the southeast Asian neighbors, marking the potential collapse of a peace plan presided over by US President Donald Trump just two months ago.

SURIN, Thailand -- Three Thai civilians were killed as heavy combat continued along the country's border with Cambodia, the Thai military said Thursday, marking the country's first civilian fatalities since the fighting resumed.

Surin, Thailand — Renewed border fighting between Thailand and Cambodia showed no signs of abating Wednesday, leaving hundreds of thousands of displaced people in both countries living in strained conditions as more flooded into temporary shelters.

Secretary of State Marco Rubio said the U.S. is “concerned” about a war that his boss claimed to have ended weeks ago. The Cambodia-Thailand conflict is one of several global conflicts President Trump has repeatedly claimed he ended in his second presidency,

Thailand has launched air strikes along its disputed border with Cambodia, its military said, after both countries accused each other of breaching a ceasefire brokered by U.S. President Donald Trump.