Polish authorities are considering tightening COVID-19 restrictions to combat the pandemic, the prime minister's chief of staff said on Tuesday, but added any steps would stop short of a severe lockdown. Michal Dworczyk was speaking ahead of the release of official data showing the total number of infections had passed 400,000 after doubling in less than two weeks. Polish media have reported that new restrictions can be expected on Wednesday, and Dworczyk told private broadcaster TVN24 the government is analysing its options.