New Delhi/IBNS: Israel on Wednesday said the last evening blast near its embassy in India's national capital Delhi could be "an attack", media reports said.

Tel Aviv has also issued advisory for its citizens living in India and more so Delhi.

As per the advisory, Israel has asked its citizens to avoid "participating in events with many participants" and "avoid posting trip details" on social media.

The Delhi Police received a call about an alleged "blast" near the Israeli embassy on Tuesday evening, media reported.

The blast was reported on a call by an unidentified caller to the Delhi Fire Service at around 6 pm.

A special cell team of the police along with the bomb squad reached the spot for inspection, the report said.

Upon reaching the location, the police team conducted a thorough search of the area but did not find anything suspicious.

The fire services also quickly arrived at the scene to promptly extinguish any potential flames resulting from the explosion.

A letter wrapped in a flag was discovered by police at an empty land a few metres away from the embassy.

The police have confiscated the letter for further investigation.

Israel's deputy envoy Ohad Nakash Kaynar, in a video statement, said, "This evening, several minutes after 5 pm, an explosion occurred in close proximity with the embassy.

"All our workers are safe. Our diplomats are safe. Our security teams are working in full cooperation with the local Delhi security."