Source: 
IRIN - water and Sanitation
URL: 
http://www.irinnews.org/report.aspx?ReportId=95460
KARACHI 16 May 2012 (IRIN) - The dead fish recently washed up on the shores of Lake Keenjhar, the largest fresh water lake in Pakistan, shocked nearby villagers in Thatta District in the southern province of Sindh.