AHMADABAD, India?A Hindu crowd set fire to a block of Muslim homes Thursday, killing at least 38 people, including a dozen children, amid riots across the Indian state of Gujarat sparked by a Muslim attack on a train full of Hindu nationalists.

The violence Thursday left at least 58 dead. The army was called out to help restore order in Ahmadabad, the commercial center, where outnumbered police firing tear gas and rifles were unable to stop Hindus from burning and looting shops and hotels.

At least 50 buildings, most of them Muslim-owned, were torched in Ahmadabad, a predominantly Hindu region. One crowd of some 2,000 people stoned six Muslim owned bungalows. The crowd then poured kerosene on the homes and set them ablaze.

Because of rioters’ blockades set up in the streets, it took police two hours and fire fighters six hours to reach the scene.