THE four men killed when their car plunged 100ft into a quarry were remembered at church services yesterday.

Jack Magee, 47, from Aberbeeg, Shane Powell, 29, from Pontypool, 21-year-old Alex Williams and 19-year-old Karl Devlin, both from Newport, died when the BMW they were travelling in left the road at Swffryd, near Crumlin, on Wednesday afternoon.

Paraplegic Mr Magee was driving the specially adapted car at the time of the incident. Now investigations are centring around its adapted hand controls.

Superintendent Nigel Russell, the officer leading the investigation, said the cause of the incident remained unknown.

He said: "Examination of the vehicle is continuing.

"We are working with the car's manufacturers to identify if there were any mechanical faults and are also looking to link-up with the manufacturers of the adapted equipment."

The results of post-mortem examinations of the four victims are expected today.

Officers are also appealing for public help in establishing why the men were in Swffryd at the time of the accident.

It is known that Mr Devlin and Mr Williams were friends, as were Mr Powell and Mr Magee, but it is still not known why they were all together that afternoon.

Yesterday the four men were remembered at church services.

The Rev Mark Mesley is vicar at Christ Church in Llanhilleth, close to Mr Magee's Aberbeeg home.

He said: "Prayers were said for the four men at our Sunday service.

"Although I didn't know Mr Magee personally, I've spoken to others that did. Our thoughts are with all the victims' families."

At the scene of the tragedy floral tributes to the dead have continued to be laid over the weekend.

One bouquet dedicated to Shane Powell read simply: "To a wonderful cousin, lots of love."

Another, in memory of Alex Williams said: "Alex - you were taken away from us. It breaks our hearts to say goodbye to you. We will always love and remember you. Love and kisses, goodnight, God bless."

Anyone with information about the incident or the four victims can call police on 01633 838111 or Crimestoppers on 0800 555111 in confidence.