The school year had barely begun when gunfire forced children in rural northern Colombia to cower under their desks in fear and silence.

On the same day students were returning to classrooms after the Christmas and New Year holidays, fighting between illegal armed groups erupted near Briceño, in the northeast of Antioquia. By nightfall, schools were shut, a rural health post had closed, and families were sheltering under their beds as rifle fire echoed through nearby hills.

Local authorities say at least 28 rural school sites have been forced to close, cutting off education for some 375 children who now remain at home under a temporary non-attendance model. In several villages, students had already arrived at their classrooms when the clashes began, leaving teachers scrambling to keep children indoors and away from windows as shots rang out nearby.

“For these children, school should be a place of safety,” said Mayor Noé de Jesús Espinosa. “Instead, it has become another place of fear.”

Fighting between Clan del Golfo (Gulf Clan) and the 36th Front of FARC dissidents has now drawn-in the state’s security forces. The violence has also shut down the health center in the village of El Roblal, leaving residents without medical care at a time when movement between villages has become too dangerous.

Across at least ten rural communities, daily life has ground to a halt. Public transport and cargo services have been suspended, cutting off supplies of food and medicine. Roughly 500 people are now confined to their homes, many lying on the floor or hiding beneath their beds to protect themselves from bullets and explosive shockwaves.

“In some houses, entire families are sleeping under their beds,” Espinosa said. “They don’t know when the shooting will start again.”

Fear has already driven at least 23 families to flee their homes. Carrying only what they could gather in minutes, they arrived in Briceño’s town center seeking refuge with relatives and friends. Municipal officials are now coordinating emergency aid, while warning that more displacement is likely if the fighting continues.

The violence is rooted in a territorial dispute over the Cauca River canyon, a strategic corridor connecting Antioquia’s Bajo Cauca region with the west of the department. Military intelligence and local sources say the escalation follows an order by alias “Gonzalito,” identified as a senior commander of the Clan del Golfo, to eliminate alias “Primo Gay,” leader of the dissident 36th Front, and seize control of the area.

For residents, however, the strategic calculations of armed groups mean little. What they feel is the constant fear — the uncertainty of whether children can return to school, whether the sick can reach a clinic, and whether families will be forced to flee again.

Army units from the Fourth Brigade are advancing cautiously toward villages such as El Roblal, slowed by the presence of improvised explosive devices and suspected minefields planted along rural paths. The risk has made it difficult for troops — and humanitarian assistance — to reach many isolated communities.

Antioquia Governor Andrés Julián Rendón has urged the national government to maintain a permanent military presence in the area, warning against further troop withdrawals.

“Peasant communities in Antioquia’s most remote regions deserve to live without fear,” Rendón said, recalling that promises made last year to keep troops in Briceño were later reversed.

The trauma is not new. In October, more than 2,000 people — roughly a quarter of Briceño’s population — were forced to flee 18 rural villages after threats from armed groups. Many slept for days in the town’s main square and urban school, unsure if they would ever return home.

As indiscriminate violence once again targets the country’s most vulnerable and forces families to lock themselves inside their homes, residents fear the humanitarian crisis will deepen across Antioquia, just months before Colombians are due to cast their votes in the May 31 presidential election.