What do you mean … he needs a belt? Justin Bieber's pants fell down as security booted the star from Mayan ruins in Mexico on Thursday, January 7, for climbing a restricted archaeological site, a Mexican official confirms to Us Weekly.

Bieber, 21, was visiting the seaside ruins of Tulum with a group of pals, including Hailey Baldwin — with whom he's more than just friends as witnessed on Instagram this past weekend — when the "Sorry" crooner apparently hopped the fence. Bieber stepped into a fenced-off restricted area and climbed up the ruins, the official tells Us.

Security yelled at the pop superstar to get off the historical site, but the singer disregarded their demands and continued his ascent, according to the official. Then, the onlooker tells Us, more security personnel appeared and yelled at Bieber, and he finally left the historical site after guards prepared to physically remove him.

Though some reports said that Bieber yanked down his pants during the fracas, the source tells Us it looked as if that part of the incident was unintentional. Bieber did, however, yell back while the officials were screaming at him, the observer tells Us.

Guards promptly escorted the star and his friends off the premises. Visitors are allowed to climb some parts of Tulum's pre-Hispanic pyramids, but there are parts that tourists are restricted from.

This isn't Bieber's first dispute south of the U.S. border. The singer incited controversy in 2013 for graffiti issues and supposedly tossing a flag during tour stops in Argentina and Brazil. However, Bieber has told Us Weekly that those days are in the past.

"I think it was me going through the phase of growing up," he told Us in an exclusive interview last November. "And making some bad decisions made me more human anyways, because I think most people go through a period in their life where they’re figuring it out … and I think that that was good for my transition just because it showed a human side to me that showed just growth."

Indeed, ABC News reported on Friday, January 8, that the singer showed a different side when he visited a local Mayan community's camp on January 5. The rep for Alltournative, an ecotourism camp near Tulum, told the outlet that Bieber was "completely respectful" and "expressed a lot of interest in the work we do to preserve the environment."

Despite the tense scenario on Thursday, the director for the National Institute of Anthropology and History in Tulum told TMZ on Friday, January 8, that Bieber was welcome back to the sacred ground as long as he follows the rules.

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