Amy Winehouse was released from police custody in London Saturday morning, after being cautioned for “common assault,” a police source confirmed to PEOPLE.

The soul diva, 24, spent the night in the city’s Holborn police station after voluntarily arriving for questioning at around 5 p.m. Friday.

When she arrived, a police spokesman told PEOPLE, a doctor determined she was “in no fit state” to be interviewed, so she was kept in a cell overnight. Once a doctor gave the go-ahead, she was questioned Saturday morning about a street brawl in which she allegedly attacked a man in the early hours of Wednesday.

Love muffins, I hope Amy learned from this. I mean you can’t go around mollywhopping people with your head and expect not to get caught.

[Source]