(refiling to fix typos in slug,
subtitle)
The number of people missing in the explosion at a generator at
the hydroelectric power plant in the municipality of Camugnano,
in the Suviana basin near Bologna, has risen from six to seven,
according to reports.
Four other workers suffered severe burns.
The fire broke out during maintenance work on the ninth level
down, at a depth of 30 metres.
Firemen said "we're having trouble getting in, we need to get
the temperatures down".
The plant's construction began 100 years ago.
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