Police in Portugal have now released the names of the little girl and her grandfather drowned in Portugal when swept out to sea by a large wave. They have been named as Lara Lewis and Brian O'Dwyer.
The two were out walking on the beach in the tourist resort of Nazare when a huge wave knocked them off their feet and took them out to sea. Mr O'Dwyer's wife was also swept out to sea but was saved by fishermen. The fishermen also pulled Lara and Brian out of the swell but they could not be resuscitated.
The British Foreign Office has not confirmed the names and their spokesman said:
"We are aware of reports of the death of two British nationals in Portugal and we are in touch with the local authorities."
Philip and Sian Lewis, Lara's parents, are reported to have been on the beach when the incident occurred. The family are from Hackney in East London, near to where the recent London 2012 Olympics were held.
The area is popular with surfers from across the world because of its very large waves. Local port authorities said that the group were walking on a beach that was not covered by lifeguards and warned other holiday makers to take extra care when walking outside of designated bathing areas.