sort out

這是一篇有關a close hoop game(basketball game)，引發了觀眾打架的新聞。
真好笑，五、六年級的小朋友比賽，有那麼重要嗎?
Police said they are still sorting out what happened, but it appears a group of parents, relatives and friends of the Jefferson team got in an altercation with a similar group from the Sutton team.

sort out [sort sth/sb⇔out]
to arrange or organize something that is mixed up or untidy, so that it is ready to be used

to separate one type of thing from another

If you sort out a problem or the details of something, you do what is necessary to solve the problem or organize the details.