Thailand and Cambodia said they were open to talks on a cease-fire in their deadly border clashes after President Trump held calls with both countries’ leaders. Early Sunday local time, residents near contested areas on the two nations’ 500-mile border woke up to sounds of explosion for a fourth day.

Fighting flared between Thai and Cambodian troops along the two countries’ disputed border early Sunday despite President Trump saying that the leaders of both countries had agreed to a cease-fire th...

Thailand’s foreign ministry said after midnight that Acting Prime Minister Phumtham Wechayachai had spoken to Trump “and expressed that Thailand agrees in principle to have a ceasefire in place”.