A 33-year-old man has been arrested and charged with aggravated battery for allegedly biting two revellers during the Arctic Monkeys' set at the Lollapalooza festival in Chicago, Illinois on 1 August (14).

Sergio Vicenteno has been accused of the random attacks, according to Cook County State Attorneys Office spokesman Steve Campbell. He has not yet entered a plea.

Prosecutors claim Vicenteno bit one concertgoer on the shin, and then attacked the man's friend, Ben Lenet, when he tried to intervene.

Another friend chased Vicenteno away.

Lenet, whose skin was broken by the bite, has been tested for hepatitis and Hiv and is currently on a course of antibiotics.