Monu (5), his brother Sonu (8), sisters Sadhna (10) and Sapna (12) were buried under the debris when the mud wall of their house collapsed in Kolari village this morning, ASP Ramji Singh Yadav said.
Rescue work was launched by the villagers, but Monu died before he could be taken out with the others.
The ASP said that the injured have been admitted to the district hospital.