(Portland, OR) -- A suspect is under arrest in connection with three bank robberies in Portland. Friday afternoon, a suspect armed with a knife robbed a bank near Northeast 15th and Fremont. Saturday afternoon, the man returned and robbed the bank again, this time armed with a machete. Less than an hour later, a bank near Southeast 9th and Belmont was robbed by a man with the same description. Officers searched and arrested 60-year-old Lance Fluker.