Colleagues of the father whose five-year-old daughter and father-in-law were washed out to sea in Portugal are said to be "totally shocked".
Professor Phillip Lewis has taught at the geography department of the University College London for 24 years. His page on the department website says his research is concerned with"monitoring vegetation using Earth Observation methods".
One of his colleagues in the department said : "I had no idea his daughter was the little girl involved in this tragedy.
"Everyone here will be totally shocked. My heart goes out to him and his family at this sad time."