00:00I'm sure you've heard the news.
00:08A blast near Delhi's Red Fort has killed multiple people.
00:13India's security teams are racing to find answers.
00:18Tonight, investigators are exploring all possibilities.
00:22CCTV shows a white Hyundai i20 parked hours before the blast
00:27and leaving as crowds surged.
00:29Police have registered cases under anti-terror laws.
00:33Police detained the car's owner as forensics teams comb the scene
00:37and NSG teams comb the scene.
00:39Security has been tightened nationwide.
00:41Airports are on alert.
00:43Markets are on alert.
00:44Pilgrim sites are on alert.
00:48Top officials will meet for a full review as India hunts for who did this and why.
