Thailand has accused Cambodia of violating a ceasefire agreement reached on Monday after days of deadly clashes along their disputed border, but negotiations between the two sides will continue.

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.

Cambodia has conducted attacks at multiple locations in violation of a ceasefire deal, a Thai army spokesman said on Tuesday, a day after the two neighbours said they would halt fighting starting at midnight.