Mattapan’s Mildred Avenue K-8 School briefly went into “safe mode” on Tuesday morning, following a spat between two parents, according to the Boston Police Department. A spokesman on Tuesday afternoon said that the situation had been resolved and students were sent home at their regular schedule.

A call came into police at 11:20 a.m., when two parents were in a spat over the custody of a child and one was fearful that the other would take the child without proper permission, police said.

"The situation was resolved peacefully, amicably," said BPD spokesman James Kenneally.

"Safe mode” is defined as no people allowed in or out at a school, according to police department and school department officials.

The police department also put out word of the incident on Twitter, a social networking site: “Mildred Ave School in Mattapan in lock down, precautionary measure following domestic involving parents, one possibly armed.”

Asked about the Twitter message mentioning a potentially armed parent, Kenneally said, "There was nothing to that."