An armed police officer guards the street close to the building on an industrial estate where it is thought the suspects linked to the Charlie Hebdo massacre are holding a hostage on January 9, 2015 in Dammartin en Goele, France. A huge manhunt for the two suspected gunmen in Wednesday's deadly attack on Charlie Hebdo magazine has entered its third day with major police activity surrounding the village of Dammartin en Goele where the suspects are holed up. Christopher Furlong/Getty Images

The two brothers who are suspected of killing 12 people in Wednesday's shooting attack that targeted French satirical newspaper Charlie Hebdo were locked in a standoff with police Friday in the sleepy industrial town of Dammartin-en-Goële near Charles de Gaulle airport. Nearby schools were evacuated, as police corned the suspects with at least three helicopters and hundreds of French security forces. Town officials urged residents to stay inside.

The fugitives are believed to be the masked gunmen who opened fire at the central Paris office of Charlie Hebdo Wednesday, killing 12 people, including two police officers. The publication had received death threats for publishing caricatures of the Prophet Muhammad.

The suspects in Dammartin-en-Goële had taken a hostage inside CTF Creation Tendance Decouverte, a printing house. A live stream of the Dammartin-en-Goele hostage standoff can be found here:

Brothers Chérif and Said Kouachi are the chief suspects in the Charlie Hebdo attack after Said's identity card was found in an abandoned getaway car. A third suspect, 18-year-old Mourad Hamyd, turned himself in to police Wednesday night after hearing his name linked to the attacks, according to the Associated Press.

Here's what we know so far about the French town of Dammartin-en-Goële. The industrial area is located roughly 22 miles north of Paris. It has a population of 8,500. Before the schools were evacuated, students were told to stay away from windows, which were covered in carpets. "Some students are crying," one student said, adding that her friend was "terrified."

Dammartin-en-Goële resident Sarah Delaunay told the BBC: "We're shut inside. We can't go out. We're about 500 meters away (from the printing compound). The town streets are deserted."

Louis Zenon, a 14-year-old who lives close to the siege site, watched as helicopters hovered over the closed-off industrial area. "There is a lot of fear," he told the Daily Mail, adding that everyone he knew was home with their doors and shutters closed.