One person has died and six others are injured after a DART bus and a semi-truck crashed at the intersection of Plano Road and Miller Road in northeast Dallas Monday afternoon, police said.

Dallas police were called to the area just before 1 p.m. According to Dallas Fire-Rescue, the driver of a semi-truck lost consciousness and drove through the intersection. The truck struck four other vehicles, including another semi, a DART bus, a box truck and a sedan. 

Dallas police said seven people were taken to the hospital; one of those patients is in critical but stable condition.

Dallas police said the driver of the semi-truck, Jerrell Monte Mathis, 42, died at the hospital.     

The investigation is ongoing.  

This is a developing story; check back for updates.