Police say the hours-long siege at a guesthouse in the Afghan capital has ended with five people dead, six wounded and 54 hostages rescued.Kabul Police Chief Abdul Rahman said early Thursday that the attack began at 8:30 p.m. local time Wednesday, when gunmen opened fire at the restaurant of the Park Palace Hotel.He did not provide the nationalities of the victims or any other details. The U.S. Embassy in Kabul said one American was killed in the attack.Gunmen stormed the guesthouse as it hosted a party for foreigners in a central neighborhood that is home to United Nations compounds and a hospital.