Hundreds of doctors protested near India’s health ministry Monday as they demanded stringent laws to protect health care workers from violence and sought justice for their colleague who was raped and killed at a state-run hospital.

The protesting doctors — who were holding up placards like “Justice delayed is justice denied” — were stopped by the police as they tried to set up free outpatient services to patients outside the health ministry in New Delhi, part of demonstrations and rallies held for more than a week.