NEW YORK (Reuters) -BP said on Friday power had been restored at its 440,000 barrel-per-day oil refinery in Whiting, Indiana, after an external power outage prompted a temporary evacuation at the plant.

"We activated our emergency response team and evacuated personnel out of an abundance of caution," the company said in a statement.

A spokesperson declined to provide more details on the units impacted by the power outage.

Last week, a fire broke out after an operational incident at BP's Whiting refinery, taking multiple units offline.

BP on Friday began the restart process of its 110,000 bpd fluid catalytic cracking unit after the fire, industry monitor IIR Energy said.