>> samantha mohr, thank you. >>> days after president obama said moammar gadhafi must leave libya, the dictator is digging in and stepping up his attacks against rebel forces with a barrage of tank fire in the city of zawiya, a city on the doorstep of tripoli. that's where richard engel is tonight. >> reporter: the libyan government claims to have

>> samantha mohr, thank you. >>> days after president obama said moammar gadhafi must leave libya, the dictator is digging in and stepping up his attacks against rebel forces with a barrage of tank fire in the city of zawiya, a city on the doorstep of tripoli. that's where richard engel is tonight. >> reporter: the libyan government claims to have liberated the town of zawiyah from rebel control. but zawiya today looks more under siege than free. as we tried to drive the 30 miles from tripoli to zawiya, we found the road lined with armored vehicles and checkpoints. we've just been stopped at another checkpoint. and we're told that all the roads leading into zawiya have been blocked. security forces turn journalists away. they told us zawiya was so calm, there was no pint for reporters to go there. but video insize the town shows evidence of major battles under way for the past two days. armored vehicles destroyed,

san mateo county are forming a partnership hoping by joining forces their concerns will carry samantha mohrd rail authorities and cities are demanding rail trails or trenches in their boundaries saying the above ground will have negative effects of city, noise and aesthetics and the city representatives plan to meet tonight in burlingame. >>> the traffic and weather on this friday, just hang in there, we'll be right back. ,,,,,,,,,, >>> good morning. i'm in the traffic center with two developing traffic situations. video we took moments ago from chopper 5 of an overturned brinks truck on the westbound side of the san mateo bridge, just as you pass the toll plaza and blocking the middle lanes and injuries reported and you can see the fire crews and the chp are on the scene. no word yet on when they're going to have the truck uprighted and cleared off the bridge but you can expect delays as you work your way through there and we will keep you updated on that. chopper 5, with live pictures right now, this is 101 in san jose. and we've been monitoring this since before 6:00, there is a stalled