- 23 updates
It is thought that five-year-old Lara Lewis was walking with her grandparents whilst her parents sunbathed on the beach on the tourist resort of Nazare, 60 miles north of Lisbon. Local reports suggest they strayed outside the area patrolled by lifeguards.
According to English-language newspaper The Portugal News, Nazare Port Authority commander Albuquerque e Silva said:
Seas across Portugal were extremely rough over the past few days, with one lifeguard on the nearby Carcavelos beach in Lisbon saying he had to rescue 23 bathers yesterday.
The five-year-old British girl and her 66-year-old grandfather, who drowned off a Portuguese beach after being dragged into the sea by waves, were named by sources as Lara Lewis and Brian O'Dwyer.
Portuguese journalist Rui Pinto de Almeida has spoken to ITV News tonight about the British man and his five-year-old granddaughter who drowned off the coast of Nazare, Portugal.
He said the young girl "was swept into the water" and her grandparents attempted to save her.
Portuguese journalist Rui Pinto de Almeida told ITV News that the alert on Salgado beach "was given at 1.53pm local time [12:53pm BST]" and "twenty minutes later" the emergency services appeared at the scene.
He said that "around 17 men" with several boats attempted to rescue the three people.
Portuguese journalist Rui Pinto de Almeida told ITV News that a five-year-old girl and her grandparents were with other members of their family on Salgado beach but they "could not help them because the accident happened further away".
Portuguese journalist Rui Pinto de Almeida told ITV News that a five-year-old girl and her grandparents "decided to go for a walk by the sea" on Salgado beach, Nazare, when "the child was swept into the water".
He added that "the grandfather tried to help her, as well as the grandmother" but the 66-year-old man died.
The grandmother is currently in hospital with "light injuries" after being rescued by fishermen.
Portuguese journalist Rui Pinto de Almeida said a five-year-old child and her grandparents "decided to go for a walk" on Salgado beach, Nazare, before the 66-year-old man and five-year-old girl reportedly drowned, in an interview with Sky News.
He added that the "child had a problem and the grandfather tried to help" and the "sea was terribly rough, about two or three metres high".
Portuguese journalist Rui Pinto de Almeida said Salgado beach, Nazare - where a British man and his granddadughter, five, have reportedly drowned - "usually attracts surfers" due to "the strong waves", in an interview with Sky News.
According to The Portugal News, the emergency authorities were alerted to a British family in difficulties in the sea at 12:53pm BST.
Ten fire and rescue workers and members of the naval police were deployed to the scene.