Four person were injured in scuffles that broke out at a Beijing Apple store after the iPad 2 went on sale on Friday in the country.

Angry customers rushed an Apple store after an Apple employee allegedly attacked several people he accused of jumping the queue, iPad.net reported.

There were reports earlier that Apple iPad 2 mania had gripped China as customers and scalpers formed serpentine queues outside Apple stores in Beijing and Shanghai.

Outraged customers broke glass doors of the store and overwhelmed security personnel, the report says. The police were called in and four injured customers taken to the hospital, iPad.net reported.

There have also been reports that people cash in on the ridiculous length of queues by selling their positions. Many also resell the iPad once they come out of the store.