A school official told AFP Wednesday.
“From records at our disposal, the death toll now stands at 58 while the number of those injured has soared to 117.”
A bomber disguised in school uniform blew himself up as students gathered for the morning assembly at the Government Comprehensive Senior Science Secondary School before classes began last Monday.
The police previously gave the death toll as 47 with 79 injured and said Boko Haram, which is opposed to so-called Western or secular education, was believed to be responsible.
The Yobe state government on Tuesday, closed down all public and private schools in the state, indefinitely.