Chengguan district. From 00: 00 to 24: 00 on August 28, 2022, there were no new confirmed local cases and no new asymptomatic local infected persons reported in Chengguan District of Lhasa. There are no confirmed cases imported from abroad and no asymptomatic infected persons imported from abroad. It only takes 48 hours to cross this place. For more information, please pay attention to the local official website for details.