Noida has witnessed 9 new COVID-19 cases including one in Supertech society in Noida sector 94. All these cases have surfaced on Wednesday, an official said on Thursday. Following the new cases, the Supertech tower in Sec-94, Palm Olympia in Gaur City-2, other nearby areas have been sealed till 10 pm, April 3. The area has been sealed so that the sanitisation work can take place in order to contain the spread of the deadly virus. Despite several measures being taken by the Noida authorities, coronavirus cases in the city are on the rise.