A stuntman who was injured on the set of the action movie "Expendables 2" during an October 2011 explosion is suing for more than $25,000, according to court papers obtained by TheWrap.

Nuo Sun filed his complaint in Los Angeles Superior Court on Thursday against Millennium Films and other entities involved with the production. According to Sun's complaint, he was injured while filming a stunt on a rubber boat near the Ognyanova Reservoir/Dam in Bulgaria, when an explosion occurred.

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The incident left him with "severe shock and injury to and upon [his] nervous system, neck, head, body, arms and injuries, all of which may be permanent," the suit says, along with "great mental, physical and nervous pain and suffering."

Sun also says he has incurred medical expenses and suffered lost wages following the accident.

Claiming negligence and liability, Sun is seeking general damages "in excess of $25,000," plus medical expenses past, present and future, compensation for loss of earnings and income, plus the costs of the suit.

A spokeswoman for Millennium has not yet responded to TheWrap's request for comment.

The October 2011 explosion also killed another stuntman, 26-year-old Kun Liu. His parents filed suit against the "Expendables 2" filmmakers in July.

Pamela Chelin contributed to this report.