president muhammadu buhari said their deaths were a mortal blow. the bbc�*s tim allman reports. to his post this year. tasked with fighting islamist insurgents, he has died in what appears to be a tragic accident. according to the nigerian army, he was travelling, along with ten other officers and crew, from the capital to the city of kaduna. his aircraft came down near kaduna international airport, apparently trying to land in bad weather. looming the incident, nigeria's president, muhammadu buhari, was briefed by his defence minister and other officials. —— following the incident. afterwards he tweeted that he was deeply saddened... for a decade now, nigeria's government has struggled with an islamist insurgency in the north of the country. more than 30,000 people have died in the fighting. around 2 million have been displaced. an investigation into the incident that claimed the lines of general ibrahim attahiru and his officers —— lives. it is now under way. resident buhari said their debts would not be in vain. —— president. tim allman, bbc news. the world health organizatio