YOUNGSTOWN, Ohio - A representative of Phantom Fireworks tells 21 News they have beefed-up security at all locations in fifteen states as they wait to hear if the feds will be investigating two bomb threats that were phoned in to the company's headquarters in Youngstown.

Phantom Vice President Bill Weimer said on Wednesday that security measures have been increased at 79 showrooms, as well as offices, warehouses and temporary retail venues set-up for the Fourth of July Holiday.

“The next two days are vital to the company and we are not taking any chances,” said Weimer.

Police, firefighters, the Youngstown Bomb Squad and a K9 team searched inside and outside Phantom's Belmont Avenue offices Tuesday night after the company received two phoned-in bomb threats shortly after President Trump tweeted a public message thanking Phantom, and owner Bruce Zoldan for donating fireworks for Thursday's Independence Day celebration in Washington, D.C.

Zoldan partnered with the Grucci family for a $750,000 donation to the firework display.

The search of the officers turned up no sign of a bomb, according to Weimer who says he is waiting to hear if a federal agency such as the FBI or Bureau of Alcohol, Tobacco, Firearms and Explosives will investigate the threats.

“This was a cowardly act, and I believe should be considered a terrorist act as well,” said Weimer. “Phantom Fireworks will cooperate with the investigation and any prosecution that may follow in this case.”

Stay connected with 21 News on the air, online and with the 21 News App for the latest on this developing story.