MIAMI: Dozens of flights were delayed at Miami International Airport after authorities closed two security checkpoints to investigate a suspicious bag. Officials say a total of 50 flights were delayed Monday evening as a result of the investigation. Airport spokesman Greg Chin says nine flights were also diverted. News agencies report some travelers missed their flights as a result of the delays. Miami-Dade Police initially responded to the investigation before it was later turned over to the FBI. FBI officials say a passenger who went through security around 5 pm had items in his carry-on bag that looked suspicious. Authorities say the passenger was questioned and his bag was searched, but the items in question were deemed safe. Chin says checkpoints reopened around 8 pm