Thailand and Cambodia exchanged heavy artillery fire for a second day on Friday as border fighting intensified and spread, while Cambodia's leader said Thailand had agreed to a Malaysian ceasefire proposal but then backed down.

Thailand and Cambodia exchanged heavy artillery fire for a second day on Friday as their worst fighting in over a decade intensified and spread to new areas.

Thailand and Cambodia have exchanged accusations over recent clashes at their shared border, resulting in fatalities and displacements. International pressure for a ceasefire is intensifying, with ASEAN urged to mediate.

The Cambodian government described the action as a serious violation of international law, including the United Nations Charter and the ASEAN Charter. They added that the Thai aggression "not only endangers peace and stability along our shared border but also demonstrates utter disregard for regional norms and international legal obligations."

By Shoon Naing, Artorn Pookasook and Susan Heavey SISAKET, Thailand/WASHINGTON (Reuters) -U.S. President Donald Trump said on Saturday the leaders of Cambodia and Thailand had agreed to meet immediately to quickly work out a ceasefire,

SISAKET, Thailand / WASHINGTON >> President Donald Trump said today that the leaders of Cambodia and Thailand had agreed to meet immediately to quickly work out a ceasefire, as he sought to broker peace after three days of fighting along their border.

SISAKET, Thailand (Reuters) -When the Thai and Cambodian armies began shelling at their contested border on Thursday, Komsan Prachan thought his family was far enough away from the fighting to be safe.