A 15-year-old was seriously injured in Ariel on Thursday when an explosion shook his home. Police are investigating claims that the explosion was caused either by illegal Purim firecrackers or a malicious Purim gift basket. The youth was home alone at the time of the blast and suffered shrapnel injures to his neck. He was rushed to Petah Tikva's Beliinson Medical Center where he was listed in serious condition. The boy's parents were informed of the incident and were on their way to the hospital.