<p>The extremists blew up a small bridge on the national highway, connecting Chhattisgarh with Andhra Pradesh, near Tongpal valley, Bastar SP Sundaraj P said.<br /><br />Traffic on the highway was affected following the blast, however, there was no report of any casualty, he said, adding that the bridge repair work is on.</p>
<p>The extremists blew up a small bridge on the national highway, connecting Chhattisgarh with Andhra Pradesh, near Tongpal valley, Bastar SP Sundaraj P said.<br /><br />Traffic on the highway was affected following the blast, however, there was no report of any casualty, he said, adding that the bridge repair work is on.</p>