A six-year-old girl has died in hospital just days after three members of her family drowned at Shoreham-by-Sea.Saja El-Khawas, six, was pulled out of the water and taken to hospital after the group came into trouble while swimming close to the shore in West Sussex, on Tuesday. But the youngster, who was in critical condition, has now died, a law firm acting for the hospital and the Palestinian Forum in Britain reported.Her older sister Sara El-Khawas, 14, and her parents, Hassan El-Khawas, 55, and Zeina Alayn, 37, died during the tragedy. The family were British citizens of Palestinian origin who came to the UK from the Rashidieh Camp in southern Lebanon, the Palestinian embassy said. The camp is on the Mediterranean coast and one of the most populous Palestinian refugee camps in the country.It is understood that the family had travelled down from their home in north-west London to visit Shoreham for the day.Floral tributes were left at Shoreham beach following the tragedy. Saja El-Khawas, six, has died in hospital just days after three members of her family drowned at Shoreham-by-Sea, West Sussex Zeina Alayn, 37, died alongside her husband and two daughters at Shoreham-by-Sea Hassan El-Khawas, 55, who died alongside his wife and children, was a Palestinian refugee Eldest daughter Sara El-Khawas, 14, was described by her school as a 'sweet girl' who was 'well-liked' by her classmates and teachers