Imagine going on a picnic, and getting stuck

"It's a little bit messy in Mosul these two days, dangerous in some parts as well.

We've been in a curfew for more than 24 hours now, we're not sure why..

Some people didn't know about the curfew till after they were far from their homes. My brother-in-law's family for example (His mom, brother's family, sister's family and uncle) went for breakfast in a casino early in the morning yesterday."
A Star from Mosul

I wonder what she meant by "casino" it cant be what I understand the word to mean