Pakistan's Meteorological Department has warned that a second wave of floods may soon affect more areas in the province of Punjab.
Department chief Qamur-u-Zaman Chaudry says the worst flooding in Pakistan's history is "not over yet." He says the next 10 days will be crucial as flood waters pass into the southern parts of Punjab Province.
Chaudry says the surging waters of the River Chenab now threaten Multan -- a city of more than 4.5 million people. Water also was rising in the Indus River.
The first wave of floods devastated large areas in Pakistan, affecting 14 million people and leaving 1,600 dead.
The United Nations has made an emergency appeal for $460 million to provide critical assistance for 6 million of the most desperate flood victims.
The UN warns that a delay could result in a second wave of deaths.
compiled from agency reports