A lake in northern Pakistan formed when landslides blocked a river in January could begin to overflow within the next 10 days, officials have told the BBC.
If that happens water may begin to flow through drainage channels dug to cope with any overflow, deputy district commissioner Zafar Waqar said.
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Meanwhile an international charity group, Focus, which is monitoring the Attabad lake, says it has installed sirens at 12 points, which will go off when water begins to spill over the embankment.
The group was also helping to evacuate people from several villages in the area, according to Focus worker Lal Khan.
Dozens of families are camping at a girls’ college in the nearby town of Karimabad.
Ismailimail 