A family of a victim mourns as they bring a blanket and a milk bottle during a ceremony for those killed in the attack in Uthai Sawan, Thailand, on Friday. AP

Friends hugged sobbing family members struggling with staggering loss on Friday in a rural northeastern Thailand community mourning the children and other victims slain by a fired police officer in the nation's deadliest shooting rampage.

At least 24 of the 36 people killed in the assault on Thursday in the small town of Uthai Sawan were children.

On Friday morning, royal and government representatives in white, military-style coats stood in lines to lay wreaths at ceremonial tables in front of the Young Children’s Development Center’s main door.

They were followed by weeping family members, who gathered their hands in prayer before laying white flowers on the wooden floor.

"I cried until I had no more tears coming out of my eyes. They are running through my heart," said Seksan Sriraj, 28, whose pregnant wife was a teacher at the center and was due to give birth this month.

"My wife and my child have gone to a peaceful place. I am alive and will have to live. If I can’t go on, my wife and my child will be worried about me, and they won’t be reborn in the next life. That’s about it.”

Many relatives were gathered in front of the child care center to start the process of claiming compensation and psychologists were also sent to the site to help them. Seven of the 10 people who were wounded were still hospitalized Friday.

Thailand’s King Maha Vajiralongkorn and Queen Suthida were expected later Friday to visit two hospitals treating the wounded, and Prime Minster Prayuth Chan-ocha was expected to visit the daycare center and the hospitals.

When asked whether he thought the child care center was secure enough, Seksan noted the attacker had been a police officer. "He came to do what he had in his mind and was determined to do it. I think everyone did the best they could.”

Police speculated the gunman targeted the center because it was near his home. They identified him as Panya Kamrap, 34, a former police sergeant fired earlier this year because of a drug charge involving methamphetamine. He had been due to appear in court Friday.

Witnesses said the attacker got out of a car and shot a man eating lunch before pausing to reload. Staff at the child care center locked the door, but the gunman shot his way through it. The children, mainly 2- and 3-year-olds, had been taking an afternoon nap, and photos taken by first responders showed their tiny bodies still lying on blankets.

Panya took his own life after killing his wife and child at home.

Nopparat Langkapin, a local official in Uthai Sawan, said the victims were "all children of our community."

"Relatives, families and close friends are deeply saddened by this incident. And we all felt this across the community very quickly. Most of us are feeling depressed and sad because they are our children," he said.

The attack took place in Nongbua Lamphu province, one of the country’s poorest regions.

A video taken by a first responder arriving at the scene showed rescuers rushing into the single-story building past a shattered glass front door, with drops of blood visible on the ground in the entryway.

Photos showed slashes to the victims' faces and gunshots to their heads.

In footage posted online after the attack, frantic family members wept outside the building. The floor was smeared with blood, and pictures of the alphabet and other colorful decorations adorned the walls.

Associated Press