Reuters, Karachi :Gunmen shot dead a Pakistani human rights activist on Friday after she hosted a talk on the politics of Baluchistan province, where security forces are fighting a separatist insurgency, police and associates said.Sabeen Mahmud was leaving her Karachi restaurant, where she also holds exhibitions and talks, when the gunman attacked her in her car. Her mother, who was with her, was wounded, police said.”Two gunmen on a motorcycle shot her. She was taken to hospital where she was pronounced dead,” senior police official Tariq Dharejo said, adding police were investigating the killing.Mahmud had just hosted a seminar called “Unsilencing Baluchistan”, focussing on the disappearance of political activists in the southwestern province.