VICTORVILLE (CBSLA) — A veteran LAPD officer who allegedly shot a fellow officer in the shoulder during an off-duty camping trip near Apple Valley was charged Tuesday with assault with a firearm.

Investigators say 44-year-old Ismael Tamayo and two fellow officers were all off-duty and shooting guns in the desert, when he hit one of them in the upper body.

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Tamayo, 44, remains jailed and is due in a San Bernardino courtroom this afternoon for arraignment on the felony count, according to the San Bernardino County District Attorney’s Office.

The charge alleges Tamayo personally used a Glock .40-caliber handgun and that he personally inflicted great bodily injury on Mark Mascareno.

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The 13-year LAPD veteran was arrested Sunday and accused of attempted murder. Tamayo’s attorney says his client is cooperating with investigators and will be cleared of wrongdoing.

The injured officer is expected to survive.

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Tamayo, who has been relieved of his police powers, is being held on $1 million bail.