Explosion and fire shut Irving Oil refinery in Saint John, Canada

(Reuters) - Irving Oil Corp shut its Saint John refinery in the Canadian province of New Brunswick on Monday morning after an explosion and a major fire that followed, with photos showing flames and smoke billowing from the complex.

Flames are visible at the scene of a major explosion and fire at the Irving oil refinery in Saint John, New Brunswick October 8, 2018. REUTERS/Michael Hawkins

The company said on Twitter it was dealing with a “major incident” at the 320,000 barrel-per-day refinery, but that all of its employees and contractors have been accounted for, none of them seriously injured.

Saint John Regional Hospital treated and released five people with minor injuries as a result of the explosion, according to Horizon Health, operator of the hospital.

“I heard a loud bang that shook our house and rattled the windows,” said Gordon Dalzell, who lives in Saint John near the refinery. He said he and others saw a “very large black sooty plume of smoke” from their street.

Energy intelligence service Genscape reported the fire appeared to have occurred near the catalytic reformer.

The crude section, catalytic reformer and a cogeneration unit were shut following the incident, Genscape reported, adding that multiple units were already offline for maintenance.

The company shut most of the plant for planned maintenance in late September, but the smaller, 25,000 bpd gasoline-making units and the 125,000 bpd crude unit were still running, a source familiar with the plant’s operations said.

The source said he believed the explosion was within the section of the plant that houses the hydrogen unit.

More than one-half of the finished products from the refinery are exported to the U.S. Northeast, according to Irving’s website.

Reports of the fire sparked a rally in futures in refined products; gasoline was up about 2 percent following the reports but subsequently was only 0.4 percent higher.

Reporting by Jarrett Renshaw and Stephanie Kelly in New York and Eileen Soreng and Subrat Patnaik in Bengaluru; Editing by David Gregorio and Steve Orlofsky