Three top Mumbai police officers, including two from the Anti-Terrorism Squad, were killed in Wednesday night's terror attack on the financial capital, top police sources confirmed to rediff.com.

ATS chief Hemant Karkare -- who was investigating the Malegaon blast case, Additional Commissioner Ashok Kamte and noted encounter specialist Vijay Salaskar and were killed in an incident outside Mumbai's Cama hospital, ATS sub-inspector Sudhir Dalvi, who was part of the operation led by the deceased, told rediff.com over phone.

"Our chief Karkare, my senior officer Salaskar and Adnl Commissioner of police Kamte died while engaging terrorists outside the Cama hospital. All of a sudden terrorists threw grenades at Karkare leading to chaos.

"We are unable to confirm whether they were fell to terrorist fire or were killed by a grenade attack," a sobbing Dalvi told rediff.com.