A mysterious object blew up at a house in the Palestinian refugee camp in Jabalia to the north of Gaza Strip Tuesday night wounding five people. The victims are a man and his four children, spokesman of the Ministry of Health in Gaza Dr. Ashraf Al-Qodra told KUNA. \"The five persons suffer from first-, and second-, degree burns; they were rushed to Kamal Odwan Hopsital in the nearby Beit Lahiya town,\" Al-Qordah noted. The security services rushed to the scene of the blast and opened a probe to determine its causes, he added.