BANGKOK -- Armed clashes have broken out between Thailand and Cambodia in long-disputed border areas, rapidly escalating months-long tensions.

Cambodia wants an "immediate ceasefire" with Thailand, the country's envoy to the United Nations said Friday, after the neighbors traded deadly strikes for a second day, with Bangkok also signaling an openness to talks.

Thailand and Cambodia exchanged fire along their disputed border for a second day on Friday, officials from both countries said, with more than a dozen people reported killed and more than 135,000 civilians evacuated.