<p>Virudhunagar: A worker was killed and five others were injured in an explosion on Sunday at a firecracker manufacturing unit at a village near here, police said.</p>.<p>In this connection, a factory foreman has been arrested.</p>.<p>The explosion at the fireworks unit in Keelathayilpatti village is suspected to have been triggered due to "friction" between chemicals during the manufacturing process, a police official said.</p>.<p>A worker aged about 50 years was killed and five others sustained injuries, the official said, adding the injured have been rushed to a hospital. </p>
<p>Virudhunagar: A worker was killed and five others were injured in an explosion on Sunday at a firecracker manufacturing unit at a village near here, police said.</p>.<p>In this connection, a factory foreman has been arrested.</p>.<p>The explosion at the fireworks unit in Keelathayilpatti village is suspected to have been triggered due to "friction" between chemicals during the manufacturing process, a police official said.</p>.<p>A worker aged about 50 years was killed and five others sustained injuries, the official said, adding the injured have been rushed to a hospital. </p>