POLICE are investigating the origins of a homemade explosive device which caused Reef World Aquarium to be evacuated for almost two hours on Sunday morning.
Hervey Bay Police Senior Constable Jules Tyson said the homemade device was found on the beach by a member of the public about 10am.
Snr Const Tyson said Hervey Bay police officers trained in handling explosives were called in order to make the area safe.
Police declined to detail the items used to make the explosive.
"It was all just common household items," Snr Const said.
Snr Const Tyson said it was believed the plans for making the explosive were downloaded off the internet.
The explosive was found during the first weekend of the school holiday period, when the beach and Reef World is usually quite busy.
If you have any information contact Police Link on 131 444 or Crime Stoppers on 1800 333 000.
EARLIER: A HOMEMADE explosive device has been found lying on a beach near the Aquarium in Hervey Bay over the weekend.
A report was made to police after a member of the public found the device made from a plastic container and filled with flammable powder on Sunday.
Senior Constable Jules Tyson said homemade explosives were not tolerated by police as they were highly dangerous and capable of inflicting serious injury to those creating them and the public.
Anyone with information is being urged to contact Crime Stoppers on 1800 333 000.