RIO DE JANEIRO, Brazil – Brazilian authorities are investigating whether a gunshot was fired near a hotel where the Honduran national soccer team arrived to stay a few hours later, police said Tuesday.

A police officer in the town of Porto Feliz in Sao Paulo state said it’s unclear if the sound heard in front of the hotel was an actual gunshot, fireworks or even a car backfiring.

He said no spent cartridge was found in the street and neither the Transamerica Hotel, nor nearby buildings showed signs of being hit by a bullet.

The officer spoke on condition of anonymity, saying he wasn’t authorized to talk with the press.

Honduras’ training camp is located in Porto Feliz, about 120 kilometres (75 miles) northwest of metropolitan Sao Paulo.