OMAHA, Neb. (AP) – An American video journalist who contracted Ebola while working in Liberia has arrived at a Nebraska hospital where he will be treated. The ambulance carrying 33-year-old Ashoka Mukpo pulled up at around 8-a.m. to a receiving bay at the Nebraska Medical Center on Monday. The area isn’t visible from the street, but the driver was wearing head-to-toe protective gear as the ambulance drove past. Mukpo will be treated in the hospital’s specialized isolation unit.

He is the fifth American to return to the United States for treatment since the start of the latest Ebola outbreak, which the World Health Organization estimates has killed more than 3,400 people. Meanwhile, a Liberian man with Ebola who started showing symptoms while visiting the U.S. is in critical condition at a Dallas hospital.