Updated at 11.09am

THE BROTHER OF a man killed in this week’s sewer pipe accident in Portmarnock has died in hospital, gardaí have confirmed.

34-year-old Stephen Harris passed away in Beaumont at 9am this morning.

Stephen’s older brother, Alan Harris, was pronounced dead in the wake of the accident, on Wednesday of this week. 

The two men, from drain-clearing and service firm Draintech, were overcome by fumes as they responded to a call out in the north Dublin suburb on Wednesday afternoon.

Three firefighters who attended the scene were also hospitalised in the wake of the emergency – but were discharged later the same day.

Separate Garda and Health & Safety Authority investigations are under way.

The two men were working on a sewer in Drumnigh Wood, when they got into difficulty.

Footballer Robbie Keane, a cousin of the two men, paid tribute to them last night.

“The family of the late Mr. Harris have requested that their privacy be respected at this time of grief,” Gardaí said in a statement this morning.

Read: Robbie Keane’s message of support after cousins involved in sewer pipe tragedy

Read: Investigation under way after one man dies and a second injured in Portmarnock sewer pipe incident