Tension continued Sunday between Lebanese Police and people doing illegal building work near Beirut airport after a second victim died from injuries sustained in an exchange of fire two days ago, according to Deutsche Presse-Agentur dpa. Four people were wounded Friday after police moved to stop the illegal construction of private properties in a predominantly Shiite area near the airport. Clashes broke out with local residents. Eleven-year-old Mohammed Naji died two days after being shot during a clash with police, dpa reported. According to hospital sources Naji died after sustaining a serious head injury. A police source confirmed the death and said the bullet which hit Naji in the head "is a bullet not used in weapons used by the Lebanese police," adding, medical reports said " the victim was shot at close range and from the back." The source hinted that the boy was hit from bullets fired at the police by unidentified gunmen at the scene. Meanwhile, police sources told dpa that a rocket propelled grenade was fired earlier on Sunday at al Hilou police barracks in Beirut causing some material damage, but no injuries among police ranks. The construction included extensions and additional floors built in breach of building regulations. A Lebanese officer at the scene said Friday: "A group of people gathered and tried to block the roads, started to throw stones and then fired at the police forces." "The force then returned fire," the officer said. According to local residents, four civilians were wounded in the incident.