NEW : The death toll from a bombing in a Shiite suburb of Quetta rises to 30 . A Sunni extremist group reportedly claims responsibility . An attack on a paramilitary convoy in the northwest of the country kills 17 people . TL;DR NEW: At least 10 killed and more than 100 wounded when suicide bombers target police headquarters in Quetta, Pakistan.
NEW : The death toll from a bombing in a Shiite suburb of Quetta rises to 30 . A Sunni extremist group reportedly claims responsibility . An attack on a paramilitary convoy in the northwest of the country kills 17 people . The violence highlights the challenges faced by Pakistan 's new government .