Kolkata: West Bengal government on Sunday re-imposed certain Covid restrictions, including the closure of schools and colleges across the state following a steep increase in Omicron variant coronavirus cases.

Government has also caped attendance at private and government offices at 50 percent. The government has also imposed a night curfew, only essential services are allowed to operate during night curfew.

From Monday onwards, schools and colleges will remain closed until further order. The government has also closed swimming pools, gyms, spas and beauty salons across the state.

"Government and private offices can work at 50 percent capacity, with all administrative meetings to be conducted virtually," Bengal Chief Secretary HK Dwivedi said in a release.

Kolkata Metro services and local trains will also be capped at 50 percent sitting capacity and allowed to operate till 7 pm. Long-distance trains, however, will be allowed to run normally.

Cinema halls, restaurants, and bars can function at 50 percent capacity and up to 10 pm. Shopping malls can stay open from 10 am to 5 pm, but crowds must be at 50 percent.

West Bengal has reported 4,512 new COVID-19 cases on Saturday, which takes its active caseload to 13,300 - the third-highest in the country after Maharashtra and Kerala. Besides, the state has reported 20 Omicron variant cases.

Union Health Ministry has shared that data showed thickly populated cities like Kolkata, Delhi and Mumbai were experiencing the sharpest increase in daily new cases.