Inmate serving life for fatal Las Vegas bombing escapes prison

 Authorities were searching Tuesday for a 42-year-old convicted bombmaker who escaped from a Nevada prison where he was serving a life sentence for a deadly 2007 explosion outside a Las Vegas Strip resort.

Gov. Steve Sisolak ordered an investigation into the incident after he said late Tuesday his office learned the escapee had been missing from the medium-security prison since early in the weekend.

"This is unacceptable," Sisolak said in a statement.