Video: A shark forced swimmers from the water at Bondi Beach today

Empty waters at Bondi is a weird sight.

There was some consternation on Bondi Beach this morning as swimmers were forced out of the water because of a shark sighting. It's the second shark sighting in less than a week and today's alarm went off around 3pm local time. These people tweeted some pictures from the popular Sydney beach.

Bondi beach closed again today for a while as another shark alarm went off #bondibeach #bondilifeguards pic.twitter.com/6gbhOOtY0S — Fuzz (@Fuzzfosk) January 5, 2015

Helicopters spotted terrorising swimmers at Bondi Beach. A shark has been released to deter them. pic.twitter.com/lvejTD4THn — Dan Anstey (@Dan_Anstey) January 5, 2015

Helicopters circle #bondi Beach after a shark was spotted close to shore. @SBSNewspic.twitter.com/DhJn8nsSdJ — Emma Hannigan (@emma_hannigan) January 5, 2015

Helicopters circled the area for about 30 minutes before swimmers were allowed return to the water. This woman picked a bad time to make her first trip to Bondi. Scary stuff.