LUCKNOW, Dec. 15 -- Dense fog and poor visibility wreaked havoc on Uttar Pradesh streets on Sunday morning, leading to six major road accidents. The mishaps involved at least 22 vehicles and claimed the lives of seven people, including two traders, and injured 10 others, said senior police officials.

More than 30 districts, including Lucknow, Jaunpur, Barabanki and Unnao, were under a thick blanket of fog in the morning, when visibility was reported to be at 20 metres or less at several places.

In Hamirpur, four people died in a head-on collision between a bus and a car on the Bundelkhand Expressway amid dense fog. Three other car passengers were critically injured. The seven were going to Prayagraj to immerse the ashes of a relative. ...