Negotiations are ongoing between the militaries of Thailand and Cambodia on Tuesday, a Thai army spokesman said, even as the Thai side accused Cambodian troops of multiple attacks in violation of a ceasefire that came into effect at midnight.

Thailand has accused Cambodia of "deliberately" violating a ceasefire the two countries had agreed on Monday to end border clashes that have killed at least 33 people and displaced thousands. It's a shaky start for the ceasefire, which was meant to bring an end to five days of bombardment and rocket attacks along the shared border.