(CNS) – A big rig fatally struck a pedestrian today on the eastbound Pomona (60) Freeway in the Whittier area, prompting closure of all eastbound lanes for a time, authorities said. The man died at the scene of his injury, which occurred around 4:35 a.m. near Rosemead Boulevard, said California Highway Patrol Officer Monica Posada. Authorities withheld his name pending family notification. All eastbound lanes were closed while an investigation was conducted. Three lanes were reopened by about 6 a.m., and all lanes had been reopened by about 8:45 a.m., the CHP reported.