HOUSTON — Drawn guns. Thrown rocks. Threatening messages. Houston’s prolonged outages following Hurricane Beryl has some fed-up and frustrated residents taking out their anger on repair workers who are trying to restore power across the city.

The threats and confrontations have prompted police escorts, charges in at least two cases, and pleas from authorities and local officials to leave the linemen alone so they can work.

Beryl knocked out power to nearly 3 million people in Texas — with most of those in the Houston area — after making landfall July 8. The Category 1 storm unleashed heavy rain and winds that uprooted trees and damaged homes and businesses along the Texas Coast and parts of Southeast Texas. State authorities have reported 18 deaths from Beryl. In the Houston area, some have been due to heat exposure following the loss of power, according to the medical examiner’s office in Harris County.

As of Tuesday, crews were still working to restore power to some residents.

“Linemen are our friends and are doing their job. Do not threaten them. I understand you’re angry and mad and frustrated, but let’s get through this together,” Mayor John Whitmire said during a news conference on Monday.

Houston police have investigated at least five cases involving threats made to workers and other employees, whether in person or online.

In one of these cases, police arrested Anthony Leonard, 38, charging him with aggravated assault with a deadly weapon. Authorities allege Leonard on Saturday threw rocks and pointed a gun at a group of CenterPoint Energy workers who were at a staging area.

Leonard remained jailed Tuesday. His attorney did not immediately return a call seeking comment.

CenterPoint CEO Jason Wells said over 100 line workers had to be evacuated from the staging area on Saturday. He said such threats are counterproductive as crews have to be moved to safer areas, delaying their work.

“So many of our fellow Houstonians have addressed this situation with patience and grace. And I want to thank them. But unfortunately, there have been instances where either acts of violence have been threatened or actually committed against our crews that are working this vital restoration. This is unacceptable. The safety of our crews is paramount,” Wells said.

KPRC reported that a charge of making a terroristic threat has been filed against a woman from the Houston suburb of Baytown. The Texas Department of Public Safety alleges the woman made multiple online threats of murder, assault and deadly conduct against employees, including Wells, at CenterPoint’s headquarters in downtown Houston. The woman has not been arrested.

Chief Deputy Mike Lee with the Harris County Sheriff’s Office said his agency has investigated a break-in of a CenterPoint vehicle and three cases where residents refused to let linemen enter their properties.

Ed Allen, business manager for the International Brotherhood of Electrical Workers Local Union No. 66, which represents workers at CenterPoint, said in 42 years in this industry, he’s never seen a response like this where workers are being threatened.

Allen said he spoke to one crew that said while they were working in a suburban Houston neighborhood, several men stood across the street from them and held an assault type rifle in a menacing way.

“It is very disheartening to see the community that I’ve worked in and that I’ve dedicated my life to provide electricity to act the way they have during this event,” Allen said.

Crews on Tuesday told Allen they haven’t received any new threats.

“I hope it’s gotten better out there. Part of that I think has a lot to do with the fact that regardless of what anybody thinks, the restoration effort has gone really well,” Allen said.

As of late Tuesday afternoon, CenterPoint reported that less than 82,000 customers remained without power.

On Tuesday, Gov. Greg Abbott sent a letter to CenterPoint demanding information from the company, including what actions it will take to reduce or eliminate power outages during future storms and how it will improve communication with its customers before, during and after a weather event.

“Texans must be able to rely on their energy providers to keep the power flowing, even during hurricane season. It is your responsibility to properly prepare for these foreseen incidents and work tirelessly to restore power as quickly as possible when it is lost. Anything less is unacceptable,” Abbott wrote.

In a statement, CenterPoint said it’s addressing Abbott’s request and that its work with officials and community leaders to increase the resiliency of the electric grid is essential in “creating and sustaining an environment in Texas where people want to live and build their businesses.”

Harris County Commissioner Adrian Garcia said the threats to CenterPoint workers and out-of-town crews only makes “it harder and longer to get your lights back on.”

“These folks are just here trying to help. Let them do their work and help us and tomorrow will be a better day,” Garcia said.