our breaking news is coming out of tripoli this evening. we want to go directly to fred pleitgen, correspondent in tripoli. what's going on? >> reporter: there appears to be air strikes going on here in tripoli tonight. we heard about three major explosions that -- we believe came from the outskirts of tripoli. what you have been seeing yesterday as well nato is attacking the -- infrastructure. that moammar gadhafi has here around the tripoli area. tonight owe has been saying it has been attacking the command and control infrastructure, bunkers, also the headquarters, in gadhafi brigades in tripoli. as well as things -- ammunition and telecommunications. what they want to do here, they strike around the tripoli area, they want to take out all of the stuff glad halfy using to supply