President Trump Donald John TrumpBiden leads Trump by 36 points nationally among Latinos: poll Trump dismisses climate change role in fires, says Newsom needs to manage forest better Jimmy Kimmel hits Trump for rallies while hosting Emmy Awards MORE said Tuesday that law enforcement officials are working in partnership to track down the “sick person or people” behind a string of bombings in Texas.

Speaking to reporters in the Oval Office, Trump called the bombings “an absolute disgrace” and vowed to get to the bottom of them.

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“The bombings in Austin are terrible,” Trump said. “Local, state and federal are working hand-in-hand to get to the bottom of it. This is obviously a very, very sick individuals or individuals. These are sick people and we will get to the bottom of it. We are very strong."

Two people have died in the bombings so far, and at least four others have been injured from five bombs planted in packages that have gone off in Texas in recent days. Three packages exploded at private residences in Austin, another was set up with tripwire on a roadside and a fifth blew up inside a FedEx facility in San Antonio.

Law enforcement officials say the perpetrator has a complex understanding of explosives. No suspects have been identified.

"We have to find this very sick person or people,” Trump said.

White House press secretary Sarah Huckabee Sanders said the administration is “committed to bringing the perpetrators to justice.” But she added that there is nothing at this time to suggest the bombings are acts of terrorism.

.@POTUS mourns for victims of the recent bombings in Austin. We are monitoring the situation, federal authorities are coordinating w/ local officials. We are committed to bringing perpetrators of these heinous acts to justice. There is no apparent nexus to terrorism at this time. — Sarah Sanders (@PressSec) March 20, 2018

Other officials have described the bombings as terrorism.

"This is absolutely a terrorist activity," Rep. Brian Babin (R-Texas) said on Fox Business Network.

"We have no clue who this is, absolutely no clue," he added. "I’m sure the FBI and the law enforcement agencies that are looking into this have some tips, some clues, but I haven’t heard anything about it.”