Thai and Cambodian leaders are meeting in Malaysia in an urgent effort to resolve deadly border clashes that entered a fifth day despite mounting international calls for peace.

The ceasefire reached in Malaysia was supposed to take effect at midnight on Monday, but it was quickly tested as Thailand and Cambodia continued to accuse each other of violating the truce agreements.

Casualties include an 8-year-old Thai boy and multiple Cambodian civilians. Thousands of displaced families are sheltering with monks, NGOs and volunteers as schools and markets close across the border region.