New Delhi, Aug. 7 -- Two old cartridges were recovered by the Delhi police during a search operation at the historic Red Fort in the national capital ahead of the Independence Day celebrations, police sources said on Thursday.

A circuit board, which appeared old, was found along with cartridges that seemed to be damaged.

According to sources, while both cartridges appear damaged, a forensic investigation will be carried out to determine further details.

The recovered circuit board was suspected to be related to the lighting arrangements used during a previous event organised at the Red Fort.

Delhi Police have filed an FIR following the recovery of two old cartridges and a circuit board.

The police are investigating the matter.

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