Over 13,000 detonators and one tonne explosives were recovered and seven persons, including three suspected Maoists, were arrested in Ranchi district of Jharkhand today.Senior Superintendent of Police Saket Kumar Singh told reporters that police raided some places at Tupudana on the outskirts of Ranchi and recovered the explosives last night. Three Maoists and four arms suppliers were arrested in this connection.Deputy Superintendent of Police Naushad Alam said the arrested persons were preparing to handover the explosives toKundan Pahan, the most wanted Maoist.Among several cases, Pahan is wanted in the beheading of Special Branch Inspector Francis Indwar in 2009.