Almost 4,000 people have taken part in a charity walk in memory of former Northern Ireland deputy first minister Martin McGuinness who died a year ago.

The event, which was organised by his family, is expected to raise tens of thousands of pounds for cancer care services and research in the North West.

Proceeds from the walk are going towards the Altnagelvin Hospital Cancer Care Centre, where McGuinness spent his final days.

Some of the funds raised will go towards research into amyloidosis, the rare disease that killed him just three months after diagnosis.

Sinn Féin deputy leader Michelle O'Neill said the number of people attending the walk was a reflection of the esteem in which McGuinness was held.

"I think the fact that thousands of people have come here today shows the high esteem in which martin was held, not just by republicans but he obviously had a reach out to many people across society so I think you’ll see that reflected in the number of people coming today," she said.

The walk was led by Martin McGuinness' widow Bernie, as well as their four children and family members.

The rain held off as the crowds began to gather at the Free Derry corner for the event, which saw them walk towards the Donegal border.

The former deputy first minister and his wife often walked that same route, passing the Inisown peninsula and heading towards the ancient fort at Grianán an Aileach.

Each of the participants were given a commemorative medal for taking part in the seven mile walk.

The McGuinness family this evening extended their thanks to all those who helped make the walk a success.

Fiachra McGuinness said: "On behalf of our entire family I want to thank everyone who made today such a huge success.

"It was an incredible experience to see people turning out in their thousands to remember our father, to raise funds for the North West Cancer Centre and raise awareness of amyloidosis."

He added: "My father would be so proud and we are so grateful to you all."

Last Thursday in Stormont his family members were there when a portrait of Martin McGuinness was unveiled.

The portrait will be on view in the Parliament building, where there has been no power sharing administration since his decision to resign in January of last year collapsed the government.