believe

Authorities in WA also say they believe a fourth person died after their call to triple-0 failed.

Some said they believe Sultana was attempting to mount a leadership bid by signing people up.

"So long as we do not give up on the long-term goal of denuclearisation, I believe there are clear benefits to having North Korea stop its nuclear and missile development," Lee Jae Myung said.

Investigators believe he also stole some items from the apartment.

Officers attempted to stop a blue Ford van near Ballymagorry driven by a man believed to be under the influence of alcohol.