Badly wounded, Salim Karim Iskef managed to video-call his fiancée to say he loved her one last time before he died in Sweden's deadliest mass shooting.

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.

The shooter targeted a center that serves migrants seeking to integrate into a country that had already reversed its liberal migration policies.

"But this hate, it is coming from somewhere." A member of Kasselia's congregation, 29-year-old Salim Iskef, was among those murdered in Orebro on Tuesday in Sweden's first school shooting and the worst mass shooting in the country's history.

Sweden on Wednesday mourned the victims of its worst mass killing as police indicated that the gunman probably shot himself after killing 10 people at an adult education centre.

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.

OREBRO, Sweden - Survivors of Sweden’s worst mass shooting on Feb 5 recalled trying to save the lives of their comrades at a school for adults in Orebro, a day after a gunman killed 11 people on what the prime minister called a “dark day” in the country’s 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

By Johan Ahlander OREBRO, Sweden (Reuters) - Ten years ago Salim Iskef, 29, fled the Islamic State and Syria to form a better, more secure life in Sweden, only to be gunned down this week in the worst mass-shooting in Swedish history.

The police responding to the attack encountered firing so intense that they struggled to tell how many gunmen were on the scene, an official said.