Updated

A pastor's mother was shot and killed when a gunman opened fire in a Colorado church Sunday, FOX 31 reports.

Yolanda Marant, a representative for The Destiny Center, confirmed to FOX 31 that 65-year-old Josephine Eccles, the mother of the church's pastor Delono Straham, was shot and killed when a unknown gunman entered the church and began shooting.

Marant says another person ran into the building and yelled for others to get down before the gunman entered and began firing.

Police say an off-duty police officer in the building followed the gunman outside and shot him. The gunman later died of his injuries in a local hospital.

Police say they are not yet sure of the gunman's motives, though he may have been involved in an earlier dispute.

Click here for more on this story from FOX31.com.