QUETTA, Pakistan (AP) — A police spokesman says a bomb rigged to a bicycle has exploded outside a market in southwestern Pakistan, killing at least three people and wounding 32 others.

Shahzada Farhat says several shops were also damaged in Friday's bombing in Alam Road in Quetta, the capital of impoverished Baluchistan province. No group has claimed responsibility, but militants with links to the Pakistani Taliban have been implicated in similar attacks in the past.

Baluchistan has witnessed a low-scale insurgency by small separatist groups, who have been demanding more autonomy and a greater share of the province's oil and gas resource.

The latest attack came two days after gunmen shot and killed a well-known Sufi Amjad Sabri in the port city of Karachi. The murder was later claimed by Islamic extremists.