SISAKET, Thailand, July 26 (Reuters) - When the Thai and Cambodian armies began shelling at their contested border on Thursday, Komsan Prachan thought his family was far enough away from the fighting to be safe.

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.

Trump said earlier in the weekend that he had spoken with both Cambodian Prime Minister Hun Manet and acting prime minister of Thailand Phumtham Wechayachai in his efforts to restore peace.

Thailand and Cambodia agree to negotiate ceasefire after deadly border dispute, mediated by U.S. President Donald Trump.

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

Acting Thai Prime Minister Phumtham Wechayachai accused Cambodia of laying new landmines in the disputed area, resulting in an injury to a Thai soldier.