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The sun rises over Crater Lake in Crater Lake National Park in this January 2006 file photo. (Marc Adamus /The Register-Guard via AP)

Crater Lake National Park officials on Wednesday announced a $5,000 reward for information leading to the arrest and conviction of anyone responsible for a theft of ammunition earlier this month from a storage building near the park's headquarters building.

Park service officials say 10,000 rounds of rifle and pistol caliber ammunition was stolen from a locked building in the park headquarters area in the early morning of Feb. 6. The ammunition was intended for use by federal law enforcement officers for training, firearms qualifications and regular law enforcement operations. Its theft is a felony.

The ammunition has a value of $8,000, reflecting how much the park service paid, said spokeswoman Jennifer Evans.

The park service previously had offered a $1,000 reward. Also, the quantity of ammunition had not been revealed publicly until Wednesday.

Investigators think the suspect, or suspects, entered through at least one locked door of the storage building then took the ammunition from secured lockers. Officials have declined to say how the locks were defeated.

Also on Wednesday, investigators released a video of what appears to be a pickup entering the Annie Creek entrance station about 2:30 a.m. the day the theft was discovered.

"Investigators want to identify the occupants of the vehicle as they may have witnessed something related to the theft," a news release says.

Crater Lake National Park employs five year-round law enforcement officers and four additional officers during the summer.

The fulltime officers are working on the case with the park service's Investigative Services Branch. That branch can be reached by phone, 888-653-0009; text, 202-379-4761; online, www.nps.gov/isb; email, nps_isb@nps.gov; Facebook, @InvestigativeServicesNPS; and Twitter, @SpecialAgentNPS.

-- Allan Brettman

503-294-5900

@allanbrettman