2000 Acura RL Engine suddenly stopped while driving

It is cold here in Minnesota, but my car started fine this early morning. While I was driving on hi-way, actually stop and go because of traffic, suddenly the engine stopped, lights on dash still on (1 year old battery). I tried to start the car for 20 min and then it got started, but drove about 1 ½ mile of speed of 60 mile/hr, the engine suddenly stopped again, no “check engine” light on at all. This time I tried and tried and waited to more 20 min…and tried but never got it started again. The car was towed to an auto shop and waited for evaluation. Can you please give me your opinion?
Thanks much!