A series of traffic accidents in the Gaza Strip on Tuesday killed one teenager and left two other youth injured, a medical official said. Adham al-Hajj Ahmad, 18, was killed when he was hit by a truck while crossing Salah Addin Street in southern Gaza city Khan Younis, Gaza medical spokesman Adham Abu Salmiya said. In the northern Gaza Strip, an 8-year-old boy sustained critical injuries after a motorcycle hit him in Jabalia refugee camp, Salmiya said, adding that he was receiving treatment in Kamal Udwan Hospital. Also on Tuesday, a 20-year-old man was seriously injured after his motorcycle collided with a vehicle in the northern Gaza Strip, the spokesman said.