Aug. 4 (Bloomberg) -- A homemade bomb exploded near an electrical substation outside Athens, nine days before the Olympic Games open in the Greek capital, Associated Press reported, citing unidentified officials.

Authorities couldn't say whether there was a link between the blast and the Olympics, AP said. The device, which was made with a cooking gas canister and a triggering fuse, exploded in the bathroom of a building near an electrical substation in Metamorphosi, six miles north of Athens, AP reported.

There were no injuries reported, the news agency said.

The Olympic Games start on Aug. 13.