Fresh CCTV footage from the day of the Delhi blast shows prime suspect Dr Umar Nabi walking near a mosque close to the Ramlila Maidan, police said on Thursday, reported news agency PTI.

In the footage, Umar can be seen walking straight along a narrow lane before turning his head to the right, the moment when the camera captures his face, and then continuing ahead. Investigators believe that he may have visited the mosque shortly before allegedly carrying out the explosion, a senior police officer said, reported PTI.