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.

Cambodia and Thailand agreed to an "immediate and unconditional" ceasefire Monday after five days of intense fighting along their shared border. The ceasefire, negotiated in Malaysia with involvement from the U.S. and China, took effect at midnight.

A ceasefire between Thailand and Cambodia appeared to largely be holding on Tuesday as military commanders from both countries met for negotiations, even as the Thai army accused Cambodian troops of violating the truce overnight.