A barricade situation at a home in Rockville's Twinbrook neighborhood ended peacefully Tuesday afternoon, police said. Montgomery County and Rockville city police responded around 3 p.m. to a call in the 13000 block of Okinawa Avenue for a woman who was threatening suicide with a firearm, Officer Janelle Smith, a county police spokeswoman, said.

Around 4 p.m. the woman voluntarily came out of the house without incident, said Officer Britta Thomas, a county police spokeswoman. Students who walk home from Twinbrook Elementary School were held until the situation was resolved, Maj. Michael W. England said in an email obtained by Rockville Patch.

"Their parents were called and asked to pick up their child," Dana Tofig, a county schools spokesman, said in an email. Three buses at Julius West Middle School—which is not in Twinbrook but serves students who live there—were delayed until the incident was resolved, Tofig said. The school's principal called parents to notify them of the situation, Tofig said.

"As always, our first priority was the safety and security of our students," he said. "At no time were students at Twinbrook or any other school in any danger because of this incident."

It was unclear how many police officers responded to the scene, Thomas said. A nearby church was used as a staging area, she said.