In the second-such incident in a fortnight, two mysterious blasts in a span of five minutes triggered panic in the national capital New Delhi in which one person was injured and four cars were damaged.

The incident took place near a petrol pump in Lado Sarai locality in South Delhi at around 11 pm on Thursday night, police sources said on Friday.

But there was no official confirmation from the police whether the explosions were caused by bombs. One person suffered head injuries and four cars were damaged in the blasts, sources said, adding that the two explosions took place within five minutes and at a distance of 250 metres.

Senior officials of Delhi Police, including those from the anti-terror Special Cell, inspected the area and collected material.

The material collected from the area has been sent for forensic tests, the sources said, adding that they could not comment on the nature of explosions till they got the report. There were no eye-witnesses to the incident, they said.

A similar mysterious blast had created panic near IIT-Delhi on January 16 in which a motorcyclist was injured. However, police has claimed that it was caused after a capacitor on an electric pole burst.