Chief Cabinet Secretary Hirokazu Matsuno told a news conference that as of Wednesday, only random testing will be carried out on passengers from China. The change is intended to "promote smooth international travel" taking into consideration relatively low infection rates among arrivals over the past two months, Matsuno said. All samples analyzed at the border were of the omicron strains, which are already found inside Japan, he said. Proof of pre-boarding negative test will still be required, he said.