Gardai are reportedly following up to 300 lines of inquiry after a double homicide in Ballymun this week. 

A major investigation is under way, with Gardaí seeking two gunmen who they believe to be responsible for the crime. 

A 30-year-old man and a mother of six lost their lives in the attack, which occurred at Balbutcher Drive.

Neither of the victims are thought to have been the intended target. 

'I believe that there's lots of other information out there that may assist with this investigation,' Chief Superintendent Lorraine Wheatley said at a press conference this week. 

'An innocent young man and a mother-of-six have been killed and we are appealing for the community to come forward.'

Two burnt out cars were found a short distance from the scene. 

Anyone with information can contact the Garda confidential helpline on 1800 666 111.