NEW DELHI: Delhi Police's initial investigation reveals that the explosion near the Red Fort on Monday, which killed at least nine people, was a 'Fidayeen' (suicide) attack, news agency ANI reported, citing sources.According to officials, the suspect planned the suicide attack as soon as he learned the Faridabad module had been busted."Delhi Police's initial investigation suggests that the Red Fort car explosion could be a 'Fidayeen' (suicide) attack. The probe indicates the suspect's motive - he planned the suicide attack as soon as he learned that the Faridabad module had been busted," sources told ANI."All relevant agencies are working on all angles to determine the motive behind the blast," they added.(This is a developing story)