Red Fort Blast: In a major car blast in Delhi, at least 13 people have been confirmed dead while dozens have been injured. Several states across the country have been placed on high alert, with police forces intensifying checks and tightening security measures to prevent any untoward incident.

Eight people have been killed and 24 injured in the blast at Red Fort.

Cops said an assault rifle, over a dozen explosive timers, and a large cache of ammunition have also been recovered. According to experts, ammonium nitrate is capable of causing a massive explosion under the right conditions. But what exactly is it and how dangerous can it be?