Honolulu Police are investigating a bomb threat after two grenades were found at an Ewa Beach towing company on Wednesday night.

All Island Towing tells KITV4 that they were in the back of a stolen vehicle brought to their yard from Pearl City around 6 p.m.

They were found in what looked like a gun container.

HPD's bomb squad was at the scene and has given the all clear to workers.

This story will be updated as more details become available.