In Bihar's Muzaffarpur, at least 50 birds have died of a mysterious disease in the last two days, officials said on Wednesday.

The officials further informed that most of the birds died in Lakshmi Nagar locality of Muzaffarpur.

Officials of the forest and animal husbandry departments said that the deaths of the 50 birds has surprised them as they had apparently fallen from the trees and died.

According to district officials, an investigation has begun into the cause of the deaths. Some local residents said that the birds died during the spell of rain.