Police and organizers of the Beijing Auto Show have tightened security at venues after three suspected thieves were arrested on the opening day.

Ning Tongtong, a press officer with the transport squad of Beijing police department, told METRO more officers had been deployed in Beijing Auto Show venues as a result.

While refusing to talk about specific numbers, she said the contingent on duty at the show will increase by 50 percent during the upcoming May 1 holiday.