Nigeria, April 13 -- The Kaduna State First Lady, Hadiza El-Rufai, on Monday caved in to public pressure and apologised for her failure to immediately denounce her son's Sunday morning threats against a Twitter user's mother.

"I can see how my tweet may have come across, and I apologise to those who were offended by it. I say, once again, that I'd never condone sexual abuse in any shape or form," Mrs El-Rufai wrote on Twitter Monday afternoon.

The atonement from Mrs El-Rufai came a day after she expressed blanket support for her son's conduct on social media, saying "all is fair in love and war."

Bello El-Rufai, 32, had triggered social media outrage after a private message he sent threatening gang rape of the mother of a man with whom...