BEIRUT - Hezbollah leader Sayyed Hassan Nasrallah claimed responsibility on Wednesday for explosions which wounded four Israeli soldiers who infiltrated into southern Lebanon last week.Nasrallah told Beirut-based Al-Mayadeen television that Hezbollah fighters planted bombs in an area they knew in advance Israeli soldiers would pass through, and detonated one of them when a first group of special forces reached the area.A second bomb was triggered when Israeli reinforcements arrived on the scene, Nasrallah said, giving the group's first account of an incident about which Israeli military officials have given few details.