Thailand’s army said it exchanged fire with Cambodian forces along their border on Tuesday, accusing its neighbor of violating a December truce.Cambodian forces “fired a single 40 mm grenade round” near a Thai patrol in the border province of Sisaket on Tuesday morning, prompting return fire, according to a Thai army statement.For all the latest headlines follow our Google News channel online or via the app.No Thai personnel were injured, the army said.“Following the incident, Thai forces responded by firing an M79 (grenade launcher) in the direction from which the shot originated, in accordance with the rules of engagement, as a warning and for self-defense,” it added.Army spokesman Winthai Suvaree said in the statement that “Cambodia’s actions violated the ceasefire agreement,” which ended three weeks of deadly border clashes in late December.“Preliminary assessment suggests the incident may have resulted from a rotation of Cambodian troops, with new personnel lacking familiarity