India, Oct. 31 -- Unidentified armed men on Friday blew up a telephone exchange building using an improvised explosive device in Pakistan's northwestern Khyber Pakhtunkhwa province, police said.

The exchange, located in Lakki Marwat district near the South Waziristan border, was severely damaged in the blast.

No casualties were reported. Police and a bomb disposal squad reached the site and have launched an investigation.

The attack comes at a time when Pakistan is witnessing a rise in terrorist incidents, especially in districts bordering Afghanistan, with government infrastructure, law enforcement personnel, and security forces frequently targeted.

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