A Nesconset mother and father were arrested Christmas Eve after police said officers responding to a shots-fired call at their apartment complex found a loaded handgun, a loaded shotgun and cocaine and marijuana stored in the bedroom belonging to the couple’s 4-year-old son.

The boy was uninjured. Suffolk County police said that following the arrests the child was placed in the custody of a family member and Child Protective Services was notified.

The couple, identified as Neil Ross-France, 26, and Dominica Kaisen, 24, both of Avalon Circle, were held with bail set at $100,000 cash or $200,000 bond after arraignment Monday in First District Court in Central Islip. Both are due back in court Friday.

Police said Ross-France and Kaisen were each charged with second-degree, third-degree and fourth-degree criminal possession of a controlled substance, as well as second-degree criminal possession of marijuana, criminal possession of a firearm, third-degree criminal possession of a weapon and endangering the welfare of a child.

Additionally, Ross-France was charged with first-degree reckless endangerment and obstructing government.

Police said that a resident of Avalon Circle called 911 after hearing “a loud bang” about 10 a.m. Christmas Eve.

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The caller told police her neighbors had an argument — and the subsequent investigation revealed Ross-France had fired a weapon, causing “a bullet to penetrate his neighbor’s wall,” during the argument, police said. Further investigation by Fourth Squad detectives discovered the loaded weapons and the drugs hidden in the child’s bedroom.

Police said the investigation continues.