Coronavirus: Fresh COVID-19 cases have been reported in China amid Omicron surge.Beijing: The southern Chinese tech hub Shenzhen was put under a citywide lockdown Sunday, the local government announced, after it reported 66 new coronavirus cases and sealed off the central business district.Home to tech giants including Huawei and Tencent, the city of around 17 million across the border from Covid-hit Hong Kong has told residents to stay home to tamp down an Omicron flare-up, having already closed non-essential venues and banned restaurant dining in recent days.(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)