Philippine Vice President Jejomar Binay has headed to the southern city of Zamboanga in a bid to broker a truce with Moro National Liberation Front (MNLF) fighters holding scores of civilian hostages while locked in a deadly stand-off with government forces. A ceasefire plan was tabled by Binay to rebel leader Nur Misuari and Defence Secretary Voltaire Gazmin late on Friday after five days of fighting that have left 52 people dead and 70 wounded in the port of Zamboanga.