Gardaí are appealing for witnesses to an assault in Blanchardstown, west Dublin, in the early hours of yesterday.
A woman in her late 30s who was walking with a crutch was out with her dog on Blakestown Way just before the N3 flyover at around 2.30am.
The woman was assaulted by a man described as being in his late 20s, around 6 foot tall, with a Dublin accent and a chipped left front tooth.
He was wearing jeans and a dark coloured hoody.
A passing taxi driver pulled up and intervened and the suspected offender ran away.
Gardaí say the taxi driver's intervention prevented a more serious assault.