Brazilian police say heavily armed gunmen barged into a Rio de Janeiro hospital and held up at least 20 patients and staff members.

Citing testimony given by some of the victims, a police officer says at least three gunmen entered the Hospital Norte D' Or in the coastal city and robbed cellphones, money, watches and jewelry. He would not provide further details. He declined to be identified because he was not authorized to speak to the news media.

No one was hurt during the robbery that occurred Monday night. Police say no arrests have been made.