Denison Police have opened an assault investigation after an argument between a husband and wife Thursday night reportedly ended when the man threw a plastic safe at the woman and struck her in the face.

Lt. Mike Eppler said officers responded to the 400 block of West Parnell Street shortly after 6:30 p.m., where they found the 40-year-old woman with minor cut to her lip. Eppler said the 43-year-old husband left the residence before officers’ arrival.

“They were arguing over another guy possibly being a business partner,” Eppler said.

The Denison Police lieutenant said the department’s report did not include details about the size or weight of the safe.

Eppler said the husband had not been arrested as of Friday morning, but could face a possible misdemeanor charge of family violence assault, causing bodily injury. The case will be forwarded to the Grayson County District Attorney’s office.