A jury has failed to reach a verdict in the retrial of a dental nurse accused of poisoning her work colleagues.

Ravinder Kaur, 35, was accused of two counts of administering poison with intent to annoy, injure or aggrieve, but the jury at Blackfriars Crown Court were dismissed on Monday without reaching a verdict.

The dental nurse, from Ettrick Drive in Bedford, denies the charge which relates to two separate incidents at Shams Moopen Dental Practice at Shefford Medical Centre in March 2012, when Ms Kaur made coffee.

Female members of staff suffered stomach upsets, alleged to have been caused by dental mercury poisoning.

The case is listed again at Blackfriars Crown Court for Monday, April 14, to decide whether Ms Kaur will face a third trial.