The COVID-19 situation is "especially serious" in Mumbai, Pune, Indore, Jaipur, Kolkata and a few other places in West Bengal, and violation of lockdown measures risk the spread of the Novel Coronavirus, the Centre said on Monday.

In a communication to state governments, the home ministry said there have been several incidents of violence against COVID-19 frontline healthcare professionals, complete violation of social distancing norms and movement of vehicles in urban areas. These should be stopped, it said.