U.S. Sen Brian Schatz said both the error that caused the false alarm of a missile attack on Hawaii and the response to that error were “absolutely unacceptable,” and lawmakers said today both the state House and Senate will hold hearings to get to the bottom of what went wrong.

Schatz said he was en route to a public speaking engagement in Honolulu, and his wife was taking their two children to the dentist when the alert moved and his phone “blew up.”

Schatz said he attempted to contact the military authorities and was unable to immediately do so, but then was able to reach Gov. David Ige. Ige confirmed what Schatz already strongly suspected because of other sources of information available to him — that this was a false alarm.

“He told me that they were in the process of getting a statement out, and I strongly encouraged him to just use his Twitter account to say that it was a false alarm, because people were panicked, and then he did so,” Schatz said. He added that “There was a planning failure. They don’t have a process that works.”

“The human error took almost 40 minutes to correct, and that is absolutely unacceptable,” Schatz said. “This false alarm caused real harm across the state. People were in tears, people were sheltering in place businesses, were shuttered, nobody knew what to do. But more than that, we need to be able to rely on our emergency notification system so that when we see or hear ‘this is not a test,’ we need to be able to rely on that 100 percent.”

U.S. Rep. Colleen Hanabusa, a member of the House Armed Services Committee and a Democratic primary opponent for Gov. David Ige, called for a “thorough, impartial investigation at the state and federal level.”

Hanabusa, who was on Oahu today, said she plans to initiate the Congressional inquiry process when she gets back to Washington, D.C., Tuesday, according to a spokesman.

“We need to understand how a serious error like this happened because people react in real time to protect their families, especially in Hawaii where we live with the threat of a nuclear attack from adversaries across the Pacific,” Hanabusa said in a statement.

“We cannot have our residents and visitors running around in chaos for more than half an hour,” she added. “The panic and fear created by this false alarm was dangerous and irresponsible.”

Leadership in the state House and Senate responded to Saturday’s false missile warning, promising to investigate and impose consequences for the error.

“This system we have been told to rely upon failed and failed miserably today. I am deeply troubled by this misstep that could have had dire consequences. Measures must be taken to avoid further incidents that caused wholesale alarm and chaos today,” House Speaker Scott Saiki said in a statement.

“Clearly, government agencies are not prepared and lack the capacity to deal with emergency situations. … The Hawaii House of Representatives will immediately investigate what happened and there will be consequences. This cannot happen again.”

State Senate Majority Leader J. Kalani English said he was “outraged” by the mistake, calling it “both unfortunate and very unacceptable.”

“I am outraged that a mistake of this magnitude occurred. … The panic and pandemonium that many in Hawaii experienced was unwarranted and completely unnecessary.

“I will be working with my colleagues in the Legislature to investigate into this matter and to provide the proper oversight to ensure that our state emergency alert system is properly functioning. We need to ensure that this never happens again and I am committed to doing so.”