Kidnappers killed one person and took an unknown number of students from a university in northwest Nigeria's restive Kaduna state, in the latest in a series of abductions at educational institutes.
Armed groups have repeatedly struck northern Nigerian schools and universities since December, abducting more than 700 students for ransom.
The government and security forces have largely been unable to stop the attacks as they struggle to contain worsening violence and criminality across the West African country.
The armed kidnappers came on foot and struck Greenfield University in Kaduna at around 8:15 pm (1915 GMT) on Tuesday, state police spokesman Mohammed Jalige said by telephone.
"One of the staff of the university was shot dead, but the number of students abducted is not yet ascertained," said Jalige, adding that police should know the number later on Wednesday.
A university staff member, speaking on condition of anonymity, said the kidnappers had seized 17 male students.
Greenfield University could not immediately be reached for comment.
Israeli planes and tanks pounded the eastern and northern outskirts of Gaza City overnight Saturday to Sunday, destroying buildings and homes, residents said, as Israeli leaders vowed to press on with a planned offensive on the city.
The Pentagon is working on plans to deploy the US military to Chicago as President Donald Trump says he is cracking down on crime, homelessness and undocumented immigration, the Washington Post reported on Saturday.
Thousands of Australians joined pro-Palestinian rallies on Sunday, organisers said, amid strained relations between Israel and Australia following the centre-left government's decision to recognise a Palestinian state.
North Korean leader Kim Jong Un supervised the firing of new air defence missiles to test their combat capability, state media KCNA reported on Sunday.
Portugal's authorities have said that between July 27 and August 15, 1,331 excess deaths from extreme heat were reported, with the over 75 age group particularly hard hit, Euronews reported on Saturday.