Lebanese police arrested four people and seized large quantities of explosives, electrical fuses and timers in several homes in northern Lebanon on Thursday, a police statement said. An official close to the investigation said those detained were members of the Syrian Social Nationalist Party, a pro-Syrian Lebanese political party. The police statement said Prosecutor General Saeed Mirza ordered authorities to raid the homes in the district of Koura after receiving information of explosives stashed there. Police found large quantities of explosives with electrical fuses, timers as well as large numbers of weapons. It said four people were arrested and an investigation was under way.