With the highly contagious delta variant of the coronavirus elevating Japan’s infection tally, the government has tightened its quarantine measures for travelers from Myanmar and several other areas, including some U.S. states and regions in Russia where coronavirus mutations are feared to be spreading.

Meanwhile, arrivals from several countries including Egypt and Pakistan, where the pandemic situation has been improving or is under control, will see quarantine measures eased.

All of the changes will come into effect Saturday.