The blast-like sound near the Radisson Hotel in southwest Delhi's Mahipalpur area caused panic among residents in Delhi

According to the Fire Department, they received a call regarding the incident at around 9:18 am. Three fire tenders were rushed to the spot, officials confirmed.

The probe into the Delhi blast has entered its third day, with the National Investigation Agency (NIA) spearheading the investigation

Eight deceased have been identified. The Delhi fire brigade investigated a call about a bomb at Delhi airport and found it was a hoax. Major airports in India are on high alert after IndiGo and Air India received bomb threats on November 12.

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Police sources added that agencies are also scanning CCTV footage from the mosque area and nearby streets to reconstruct Umar's movements before the explosion

Police in India are pushing on with a probe on every angle as they try to pin down what or who could have caused a deadly explosion on Nov 10 in New Delhi. Reuters reported one possible lead - a link to the arrest of seven men caught with firearms and bomb-making materials in the Kashmir region earlier in the week,