A Holyoke man is expected to face charges after his 5-year-old grandson took a loaded handgun from his home and brought it to school Friday, police said.

Officers responded to the E.N. White Elementary School on Jefferson Street around 3 p.m. after school officials reported that a pre-K student had a .22 caliber Ruger SR22 semi-automatic handgun in his backpack, according to Holyoke Police.

Police said the boy did not take the gun out of his backpack while at school and that no one was injured in the incident.

After speaking with him and his mother, police said they determined that the boy got the gun from his grandfather’s house while visiting with his mother before school.

The grandfather, 52, is cooperating in the investigation, though police said charges including reckless endangerment of a child and improper storage of a firearm are expected to be filed.

According to police, a second handgun and ammunition were seized during a follow-up visit to the man’s home, along with his Massachusetts license to carry card.

Holyoke Police and the Massachusetts State Department of Children and Families are investigating the incident.