A magnetic device was apparently stuck on the rear of the Israeli embassy car, which exploded here on Monday, and the blast could have been triggered with a remote control device, Delhi police commissioner BK Gupta said.
He said the special cell of Delhi police has been given the responsibility to probe the incident, he said.
He quoted an eyewitness and said a magnetic device was stuck on the rear of the car near Aurangzeb Road crossing by a persib riding a motorcycle, following which a minor blast took place after the car moved a few metres and then it caught fire.
"It was some kind of a magnetic device which was used to target the car.
He said three persons were injured in the incident and forensic teams are collecting samples of the explosives from the spot.
Gupta said the woman from Israeli embassy, who sustained injuries in the blast, was stable.
Sources said it did not appear that a timer was used to trigger the explosion and instead a remote control could have been used.
They said the attack did not appear to be a handiwork of a local gang.