A former prisoner sustained serious injuries on Sunday after setting himself on fire in front of the Palestinian Authority Ministry of Finance. Wissam Bilal Khalil Marouf, 21, from the northern district of Tulkarem, suffered serious burns across his body when he set himself alight in protest to late payment of benefits to former prisoners in Israeli jails. Witnesses say he had brought his medical file with him as evidence for the ministry. A medical source in Tulkarem said Marouf had been injured by Israeli forces, leaving him with a 30 percent mobility rate and speech difficulties. Police have launched an investigation into the incident.