<p>The blast's impact was so powerful that several shops caved in at the market in Kohat, 60 kilometres south of Peshawar, TV channels reported.<br />At least 10 people were killed in the blast, they said, adding rescuers are still trying to pull victims from the rubble.<br /><br />It was immediately not clear whom the bomber wanted to target, police said.<br />Further details were immediately not available.</p>
<p>The blast's impact was so powerful that several shops caved in at the market in Kohat, 60 kilometres south of Peshawar, TV channels reported.<br />At least 10 people were killed in the blast, they said, adding rescuers are still trying to pull victims from the rubble.<br /><br />It was immediately not clear whom the bomber wanted to target, police said.<br />Further details were immediately not available.</p>