Videos of people being dragged from their homes by health workers in hazmat suits coursed through Chinese social media Sunday, before being pulled down on some platforms, as Shanghai’s lockdown enters its seventh week and pandemic restrictions continue to be intensified in Beijing.

The videos — which purported to show COVID-19 positive patients and their close contacts tussling with the workers — come as Shanghai tightens some aspects of its intensive lockdown despite a drop-off in new infections.

People living in the same building as confirmed virus cases now also risk being transported to government-run quarantine facilities, according to local residents and widely circulated social media posts. Previously, only people living in the same apartment or the same floor as positive cases would likely be considered close contacts and put in official quarantine.