A car explosion near New Delhi's Red Fort killed at least eight people and injured 20 others on Monday, local media reported.
The owner of a car involved in an explosion was later arrested, India's NDTV channel reported. The cause of the car explosion has not yet been confirmed.
The remains of those killed have been taken to the Lok Nayak Hospital, India’s Hindi-language Aaj Tak reported, adding that the death toll may continue to rise.
Five to six vehicles in the area were blasted apart in the explosion, the outlet added.
Visuals on local media showed flames and smoke billowing from more than one vehicle in what was described as a congested street located near a metro station in the old part of Delhi.
According to the New Delhi-based Navbharat Times, officials and responders are still investigating the cause of the incident, and all possibilities are being considered.
Firefighting vehicles at the scene of the New Delhi explosion
Firefighting vehicles and a police team rushed to the scene, NDTV reported.
Indian Prime Minister Narendra Modi subsequently sought information on the blast from Union Home Minister Amit Shah, the Navbharat Times reported.
Shah later arrived at the Lok Nayak Hospital, according to the Navbharat Times.
The Red Fort, known in India as the Lal Qila, is a 17th-century, Mughal-era fort located in the old city and visited by tourists throughout the year.