The girls were digging mud when the mishap occurred in Deorakhas Milakh village, police said.
The girls were identified as Nirdosh (16), Nanhi (15), Vinita (18), Seema (18) and Laxmi (18).
An ex-gratia will be paid to kin of the deceased from the chief minister's discretionary fund, Sub Divisional Magistrate Padam Singh said.
