South Korean health authorities have said novel coronavirus infections among people arriving from abroad could drive the number of new cases to more than 100, the first time since the beginning of April that daily cases hit triple digits.

Korea Centers for Disease Control and Prevention (KCDC) deputy director Kwon Jun-wook told a briefing a large number of crew members on a Russian ship had tested positive, as had a number of South Korean workers brought home on military flights from Iraq.

So far, 32 members of the ship’s crew, along with five people who had been in contact with them, had tested positive, Kwon said.