Naked man alarms McDonald's customers

A naked man caused chaos at fast food chain McDonald's in Chicago, and alarmed customers who began hitting him with the yellow caution sign.

The unnamed male "tried to enter a door leading to the food preparation area, approached the counter several times and strutted around the entire floor amid screaming and laughter", according to CBS Chicago.

Customers who were shocked hit the man with a caution sign before police arrived and took control of the situation.

The video of the incident has been posted on Live Leak and shows full frontal nudity, ending before the police arrive.