Senior lawyer and BNP vice-chairman Khandaker Mahbub Hossain has been put on a ventilator at a private hospital in the city.
He was admitted to Evercare Hospital with respiratory problem on Tuesday, said Sayrul Kabir Khan, a BNP media cell member, quoting the family on Wednesday.
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Mahbub, former vice-president of the Bangladesh Bar Council and president of Supreme Court Bar Association, is one of the lawyers of BNP chairperson Khaleda Zia.