KANSAS CITY, Mo. -- A man who had just donated plasma was held up on Tuesday.

It happened around 2 p.m. near West 37th Street and Broadway Avenue.

The victim told police he was walking to a McDonald's restaurant next door when two men robbed him.

Police caught up with the suspects at a 7-Eleven near Gillham Road and Linwood Avenue.

Both men took off running.

Officers took one man into custody, but the other suspect is still on the loose.