as i looked down the street i was driving on, and i noticed 3 objects in the sky. really close together but i could see the sky inbetween them, they continued going north east for about 3 to 5 seconds. then they made an amazing u-turn and headed south east.the u-tun was almost like what you see in fighter jet movies where the back end flips down and turns while the front end goes and and just kind of rolls flat. all 3 objects did this at the exact persice time. and the time it took me to go maybe a mile down the road, they had gone over a short hill range separating Antioch and Livermore. when i first noticed it i thought it was a kit or something but as it just kept flying i had to rule that out. i lost sight of it when it went over the mountain range,