Thailand's prime minister announced new land border restrictions Monday aimed at blocking tourists heading into Cambodia as the two countries engage in retaliatory measures in their border dispute. Relations between the countries have deteriorated following an armed confrontation May 28 in which one Cambodian soldier was killed in a

Only students, medical patients and people purchasing essential goods will be allowed to enter or leave Thailand under the new rules.

Thailand and Cambodia shut several border crossings in tit-for-tat moves, ratcheting up tensions between the two Southeast Asian neighbors as Prime Minister Paetongtarn Shinawatra fights to save her government from a political crisis triggered by a leaked phone call over the weekslong standoff.