A suicide bomber targeted and killed at least 10 people in Pakistan's Swat Valley on Saturday.

The assault near a security checkpoint is thought to be part of a renewed Taliban push against the government after a major crackdown against the group.

Police say the bomber was in a rickshaw and that the attack killed two soldiers, three policemen and five civilians.

The blast left two rickshaws twisted and a car burning. Windows in nearby buildings were shattered.

An eyewitness said he saw a burning vehicle and at least five people, including some women, who were burned to death.

The blast in Mingora, Swat's main town, was the sixth this week, and will add to pressure on President Asif Ali Zardari during a critical period.

The economy is sluggish and foreign investors have been scared away by violence.

Meanwhile, Washington may be concerned that these attacks will force Pakistan to further focus on fighting homegrown Taliban, instead of hunting Afghan militants who cross the border to attack U.S. troops in Afghanistan.