The Pakistani national, identified as Arbaab Misri (50) was arrested from the m Border Pillar Number 1120, nine km of Vighakot, last week near the International Border, they said.
Misri, who is suspected to be mentally unstable, according to intelligence agencies, told the police that he belonged to Badin in Sindh.
"Though nothing suspicious or incriminating was recovered from him, he will be interrogated thoroughly at the Joint Interrogation Centre (JIC) in Bhuj by various intelligence agencies about to how he reached the International Border," police said.