The woman, who was the sole occupant of the car was brought to Tullamore Hospital where she was later pronounced dead.

The man who was aged in his 50's was on the e-scooter when he was hit by the van.

Gardaí are appealing to anyone who was in the area and who may have dashcam footage to contact Roscommon Garda Station

The three people who lost their lives have been named as 45-year-old Thomas O'Reilly, his wife, 46-year-old Bridget O'Reilly, and 3-year-old, Tom.

The tragedy has hit the county less than a week after a crash in Clonemel took the lives of four young people.

The man was pronounced dead at the scene.

To date in 2021, 113 people have been killed on Irish Roads.

Gardaí are appealing to anyone who witnessed the incident or who has dashcam footage to come forward.