So on one of my facebook accounts, I get this -

It's a fake account but no 1 has logged into it, I know that for certain.
I then get this when I press continue -

I'm logging in from the same browser as I always have done, I have a separate Chrome user account with proxies setup for each account but that doesn't work.
All the "friends" are just randoms and I don't know who they are.
Any advice?
Are your proxies private to you only?
Not sure if there is much you can do here.
Can you find this user from a separate account, see the users friends, then use this info to help you identify photos of friends?
Google the friends names and try to guess. You get a ton of chances to do it.
Finally got back in! 
Used a different account to check the pictures, took me a couple attempts though.
Got the "irregular account activity" thing on my account, Facebook now won't let me buy ads etc on this one :/
Also, once I got back in, Facebook had paused all of my ad sets, not the campaigns just the sets!
Had to go back in and manually click to approve them again.
Make sure to double check that if this happens to you!