Militant labor group Kilusang Mayo Uno (KMU) raised alarm over the alleged surveillance operations that had been done in its Quezon City headquarters.

The KMU, in a Facebook post, noted a tinted police van was going around the vicinity of its headquarters on Tuesday morning.

Another police mobile was also seen at 4 p.m. on the same day at the driveway of the KMU office.

“Nasa anim na pulis ang nakitang nagtatanong sa mga residente (Six police officers were seen questioning residents),” the group said.

Based on its communication with village officials, KMU said the police operatives were looking for a barangay official who allegedly holds a “list of loose firearms.”

The alleged surveillance activities on KMU’s headquarters came amid the government’s massive crackdown on progressive groups whose members were arrested in police raids for illegal possession of firearms and explosives.

The latest incident was on Dec. 10 when Manila Today editor Lady Ann Salem and six trade union organizers were nabbed by authorities.

The KMU is among the progressive groups accused by the government of fronting the Community Party of the Philippines-New People’s Army (CPP-NPA).

It decried the supposed “harassment and intimidation” by the police conducting the surveillance operations.

The labor group said it would ask the Commission on Human Rights (CHR) and Department of Labor and Employment (DOLE) for a dialogue about the incident.

“An office inspection will also be conducted in coordination with CHR and village officials,” KMU said.