A district police official said the suicide bomber detonated his explosive-laden three-wheeler auto rickshaw at the Phattak Chowk in Naurang Bazar, in the Lakki Marwat district of the restive Khyber Pakhtunkhwa province

A source said security has been increased at the Bharatiya Janata Party (BJP) headquarters on Deen Dayal Upadhyaya (DDU) Marg and nearby government establishments, with additional deployment of armed personnel, barricading and intensified vehicle checks