Police recovered an envelope with a note, addressed to the Israeli Embassy. It was found at the site of a minor IED blast near the mission in Delhi on Friday.
They did not divulge any further details about the envelope but said it was addressed to embassy officials.
Investigators scanned footage of CCTV cameras installed nearby and spotted a vehicle moving suspiciously near the embassy just before the explosion.
A minor IED blast took place near the Israeli Embassy in the heart of Lutyens’ Delhi on Friday evening. No one was injured but some cars were damaged in the blast.
The blast took place when President Ram Nath Kovind, Vice President M Venkaiah Naidu and Prime Minister Narendra Modi were present just a few kilometres away at the Beating Retreat ceremony at the culmination of the Republic Day celebrations.
Delhi Police Additional PRO Anil Mittal said initial impressions suggest that it could be a mischievous attempt to create a sensation.