TACOMA, Wash. (AP) — An outbreak of COVID-19 cases that started in June at a facility for detained immigrants in Tacoma has gotten worse.

150 people have tested positive at the Northwest ICE Processing Center.

A document submitted to federal court by the U.S. Attorney’s Office says the surge came as the federal government transferred nearly 1,100 immigrants to the facility in an attempt to relieve overcrowding at the southern border.

The government says in legal documents its protocols may not follow the ideal scenario outlined by the CDC but contends it meets the federal health agency’s recommendations.