Rachel Riley apologises for Sydney mall stabbings tweet as she faces calls to be sacked

Rachel Riley has apologised for a tweet about the Sydney mall stabbings, leading to calls for Channel 4 to sack the presenter.The Countdown star has been accused of promoting Islamophobia when she incorrectly suggested the horrific attack which killed six people was linked to a Palestinian uprising.In a now deleted post Riley claimed the shopping mall assault was due to a "globalised Infitada".