Police presence has been heightened in Shaheen Bagh, the protest site in Delhi where anti-CAA/NPR/NRC protestors have been staging a sit-in for over three months. This has been don after bike-borne miscreants hurled a chemical at the protest site from some distance on Sunday morning before fleeing the spot.

A man riding a motorcycle is believed to have hurled some chemicals in a glass bottle at the protest site and another near the Jamia Milia University's gate number 7.

According to the deputy commissioner of police (DCP), CCTV footage from the area is being examined to further probe the incident.

More details are awaited as this is a developing story.