A Seattle area movie theater was evacuated on Friday after mistakenly receiving a leaking package that contained bodily fluids.

The North Bend Theatre in North Bend, Washington — about 30 miles east of Seattle — received a box marked "highly contagious human substance" on Friday night, according to a Twitter thread from Eastside Fire & Rescue. Authorities later determined that the box contained human urine.

The theater manager had opened the box when it arrived. It was "leaking an unknown liquid," according to an announcement on the theater's website.

Police, fire and hazmat teams responded to the call that evening. They evacuated the theater and isolated the box, which contained one package of urine, according to spokesmen from Eastside Fire & Rescue. Authorities sent the sample to a local medical center, which confirmed that it was human urine.

The theater manager was taken to a hospital as a precaution. He did not sustain injuries as a result of the incident.

Eastside Fire & Rescue ultimately deemed the incident "minor" and said it was "not considered suspicious or malicious," according to its Twitter thread. No one was injured.

The urine was thrown away, and authorities say the box was meant to be sent to a medical clinic in Tacoma, approximately 40 miles away from the theater. It was not immediately clear how the box ended up at the theater instead.

The theater opened for business as usual on Saturday.