Natalie Joyce from County Durham is like many people caught up in the economic climate. Her company is in administration, her wages are not being paid on time, and she's found herself unable to pay council tax and other bills.
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Jarrow School and Jarrow Cross C of E Primary School were shut on Tuesday to allow a deep clean to take place.
The unusual discoveries in Blackhall Colliery have been made since 2014, including four this year.
Chiefs say they are working to tackle the issue.