Denmark said it is keeping five suspected pirates in custody while it explores legal action after an attack against a Netherlands Antilles-registered freight ship off the coast of Somalia, The Associated Press reported. Thomas Winkler, head of legal services at the Ministry of Foreign Affairs, stated that a request has been sent to Dutch authorities and that the men will be held until Denmark knows where they will be prosecuted. The Danish navy caught the suspected pirates in the Gulf of Aden yesterday after receiving a distress call from the freighter. The Danes intercepted and sank the vessel after the freight ship crew set it on fire with a distress signal rocket, forcing the suspected pirates into the water.