Justin Bieber was kicked out of a Mexican archaeology site after he reportedly "pulled his underpants down" and climbed restricted areas.

The 21-year-old first attempted to enter the site Thursday but was refused entry because he was carrying a beer can, a local paper reports.

After disposing of the alcohol, the "Sorry" singer and four companions entered the site. Justin then allegedly attempted to climb the ruin and pulled down his pants in order to have a picture taken of his backside, several local news outlets report.

Adriana Velazquez, who is the director of the National Institute of Anthropology and History that manages the country's archaeology sites, spoke with local press and said after Justin's behaviour the singer's bodyguards got into an argument with site security guards. Following 15 minutes of alleged "pushing and shoving," the singer was escorted out of the site.

Justin has been actively posting photos on Instagram during his trip to Mexico with his alleged new girlfriend, 19-year-old Hailey Baldwin.