Heavy combat between Thailand and Cambodia has entered a second week, with Cambodia claiming Thai bombing is hitting deeper into its territory.

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.

President Trump is expected to speak with Thailand’s prime minister on Friday, as he seeks burnish his self-styled image as a peacemaker by intervening in a border conflict between Thailand and Cambodia that entered its fifth day.

President Donald Trump says Thai and Cambodian leaders have agreed to renew a truce after days of deadly clashes threatened to undo a ceasefire he helped broker earlier this year

Thailand may escalate against Cambodia, weighing fuel and maritime curbs, with decisions due at a Monday security meeting.

The Royal Thai Army says there will be no ceasefire “until Cambodia ceases its hostilities and attacks against Thai troops and civilians in the border area”

Fighting has flared up several times this year since a Cambodian soldier was killed in a May skirmish, as decades-old tensions over the border territory persist.

The escalation broke the ceasefire brokered in July by Trump who threatened to halt trade talks with the two countries unless they ended the fight.