"Fifteen people were killed in dust storm (since yesterday). Six died in Sitapur, three each in Gonda and Kaushambi and one each in Faizabad, Hardoi and Chitrakoot," the spokesman said here.
Besides, 17 people were injured in Sitapur and 11 in Faizabad, he said.
The weather department has warned that thunder squall is "very likely" at isolated places over the state tomorrow, while rain and thunderstorm accompanied with gusty winds are "very likely" at isolated places during the next two days.
He also directed that compensation be paid to the kin of those killed and said no laxity on the part of the administration would be tolerated.
The weather department also said that rain and thundershowers occurred at isolated places over east Uttar Pradesh, while the weather was dry over western part of the state.
Agra recorded the highest temperature of 44.9 degrees Celsius in the state.
The state was swept by three major dust storms last month that left over 130 people dead.
On May 13, 39 people died in various districts including Bareilly, Barabanki, Bulandshahr and Lakhimpur Kheri districts.
Thunderstorms and lightning on May 2-3 left 80 dead in the state, most of them in Agra district.
Another deadly dust storm hit the state in the first week of June leaving 17 dead and 11 others injured. Most of the deaths were caused due to falling of trees and house collapse.
Moradabad bore the brunt of the storm, with as many as seven deaths reported from the district, followed by three deaths from Sambhal.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)