Two separate bomb blasts in Pakistan's northwest near the border with Afghanistan killed at least four people Tuesday.

Local officials said the first bomb exploded in the city of Peshawar, the capital of Khyber Pakhtunkhwa province, killing one person and wounding at least four others.

A second bomb at a busy market in the Landi Kotal area of the Khyber tribal region killed at least three people and wounded six others.

A major land route to Afghanistan passes through Khyber and was used to supply the 130,000 U.S.-led coalition troops before Pakistan suspended it to protest a November NATO air attack that killed 24 Pakistani soldiers.