A gunman opened fire at an adult education center in the Swedish city of Örebro on Tuesday, killing at least 10 people in what the country’s prime minister called the “worst mass shooting in Swedish history.

Witnesses who survived Sweden’s worst mass shooting have described horror and panic that gripped an adult education center west of Stockholm as the gunman killed at least 10 people.

As the pope invoked upon the Swedish people "Almighty God's gifts of unity and peace," Swedish Cardinal Anders Arborelius of Stockholm lamented the rise of violence in Sweden after 11 people, including a gunman, were killed in the deadliest mass shooting in the country's history Feb. 4.

The king and queen visited the scene of the tragic event that occurred on Tuesday and Swedish flags were flown at half-mast to honor the victims.

About 10 people including the gunman have been killed at an adult education center in what Sweden’s prime minister called the country’s “worst mass shooting.”

At least 10 people were killed in a school shooting in Sweden on Tuesday, with police officers confirming the suspected gunman also died after carrying out what is being described as the worst mass

One day after the killings at an adult educational center, some gathered to lay flowers and come to grips with the violence.

Police remained on the scene of an adult education center in Orebro, Sweden, where a deadly shooting left around 10 people dead on Tuesday, Feb. 4.

The death toll has risen to 11 following the shooting on Feb. 4 in Örebro, while police said the number of injured is still unclear

Sweden’s worst mass shooting has left at least 11 people dead including the gunman and five seriously wounded at an adult education center

By Johan Ahlander and Anna Ringstrom OREBRO, Sweden (Reuters) -Survivors of Sweden's worst mass shooting on Wednesday recalled trying to save the lives of their comrades at a school for adults in Orebro,