Pop superstar Justin Bieber has been released from the hospital and already lashed out at a photographer after losing his temper in the latest drama during his U.K. tour. The incident occurred hours after the health scare that forced him to leave the London O2 arena.

Reuters video captured the Canadian singer exiting a vehicle and lunging at a photographer before being restrained.

The video shows Bieber's swearing at the photographer. "What did you say? What did you say?" he shouted before swearing and his body guards dragged him back in the vehicle.

Bieber sent out various tweets about the incident: "Sometimes when people r shoving cameras in your face all day and yelling the worst thing possible at u…well I'm human. Rough week" and the "Only way someone can break u is if u let them."

Bieber, 19, also appears to be ready to perform, tweeting, "Not gonna let them get the best of me again. Gonna get focused on this show tonight. Adrenaline is high now. Gonna put it on the stage."

During Thursday's concert, Bieber fainted backstage.

After the episode, emergency personnel examined the 19-year-old singer backstage and gave him oxygen. The star took a 20-minute break, finished the concert and was taken to a doctor, his spokeswoman said in a statement.

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Bieber's manager, Scooter Braun, told the audience at the concert that the singer experienced breathing trouble throughout the show, according to multiple reports - adding that he became light of breath and, at the time of the announcement, was backstage with medical personnel.

Bieber tweeted to his 35 million followers after, writing "getting better. thanks for everyone pulling me thru tonight. best fans in the world. figuring out what happened. thanks for the love."

The singer also posted a shirtless photo of himself on Instagram, lying on a bed and wearing headphones in what appears to be a hospital room.

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Bieber's London trip has earned him some negative headlines. Last week, he and his entourage were asked to leave a club, and he was booed Monday for starting a concert hours late.

On Wednesday, he posted several tweets pushing back against his detractors.

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