The situation in Gaza has led to an increase in anti-Semitic attacks on British Jews.
Jewish advice group The Community Security Trust reported there were 130 anti-Semitic incidents in July alone - the second highest monthly total on record.
Asked if the fighting in Gaza could lead to more attacks on British Jews, Hammond told the Sunday Telegraph, "Of course it's a concern and we have already seen certainly an upturn in anti-Semitic rhetoric."
More top news
The Friends star had reportedly not seen her mother for several years following a feud - but reconnected with her shortly before she died.
A deal is believed to have been reached with official confirmation likely on Friday.
The woman is described as being around 50 years old with short spikey purple hair.