An Eagle River elementary school was briefly locked down Friday afternoon after police received a report of a woman with a knife, authorities said.
Two Fire Lake Elementary students were outside during physical education class when they say they saw the woman, said Heidi Embley, Anchorage School District spokeswoman.
After students reported the incident at 12:45 p.m., the school was locked down for less than 10 minutes and on "stay-put" status after that for 45 to 50 minutes, Embley said. Officials issued an "all-clear" around 1:45 p.m.
Authorities have yet to find anything suspicious in the area, and no students were injured, said Dani Myren, an Anchorage Police Department spokeswoman. The investigation is ongoing.
Police were alerted of the possible threat by the school at 1:01 p.m., said Myren.
Editor's note: An earlier version of this story reported that the two children said they were threatened with a knife. That was incorrect.