At least 16 people were killed while scores others were critically wounded after hail and dust storms struck India's northern state of Uttar Pradesh, government sources said Friday. The sources added that a three-year-old died after a wall of school collapsed. Many houses, mostly built of thatch and mud were uprooted, due to gusty winds reaching up to 75 kmph. Due to hail and dust storm, hundreds of trees were uprooted and obstructed the rail tracks causing disruption of rail services in the region. The storm also affected the electricity in the Uttar Pradesh and plunged 1.5 million households into darkness