The deputy leader of Sinn Féin says she's not embarrassed by continuing attention to the party President's Twitter account and his teddy bears.

In an interview on national radio this morning, Gerry Adams again apologised for his use of a racial slur in a tweet earlier this week.

He also went on to talk about his teddy bears, including how some of them were engaged to each other, and his collection of rubber ducks.

Mary Lou McDonald says political leaders should have a sense of humour: