Norwegian police set off a controlled explosion of a “bomblike device” found in central Oslo Saturday, a suspect is being held in custody, and the security police are investigating, authorities said.

A Reuters reporter described a loud bang shortly after the arrival of Oslo’s bomb squad.

“The noise from the blast was louder than our explosives themselves would cause,” a police spokesman said, while adding that further investigation would be conducted at the scene.

The device had appeared to be capable of causing only a limited amount of damage, the police said earlier.

Police declined to give information about the suspect.

Norway’s police security service said in a tweet it had taken over the investigation from local police.

Oslo’s Groenland area, a multi-ethnic neighborhood that is home to popular bars and restaurants as well as several mosques, is also where the city’s main police station is located, less than a kilometer from where the device was found.

In neighboring Sweden, a truck Friday plowed into crowds in Stockholm, killing four people and wounding 15 in what police said was an apparent terror attack.

In 2011, right-wing extremist Anders Behring Breivik set off a car bomb in Oslo that killed eight people and destroyed Norway’s government headquarters, before going on a shooting rampage that killed 69 people at nearby Utoeya island.
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