A damaged ship moored off the north Kent coast with a potentially explosive cargo poses no threat, an MP says. Ruby – a Maltese-owned and flagged vessel – has been at an anchorage point about 11 miles off Margate since September 25 awaiting repairs. Veteran Kent MP Sir Roger Gale says he met with maritime minister Mike Kane amid concerns over the vessel. Ruby is carrying ammonium nitrate, a chemical that can explode but is relatively safe if uncontaminated and stored properly. But the Conservative MP for Herne Bay and Sandwich reassured residents in a series of tweets on Saturday. “I am advise…