A researcher at London Metropolitan University has been suspended after it emerged he was involved the bombing of the Israeli Embassy.
Palestinian-born Jawad Botmeh was sentenced to 20 years in jail in 1996 after he was found guilty of conspiracy to cause explosions in the UK.
A car bomb exploded outside the embassy in London in 1994 injuring 14 people.
Botmeh was released from jail in 2008 and had been working as a research manager at London Met's Working Lives Research Institute for five years.
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A lamp in the tower which houses Big Ben is to be switched off for the first time in more than 70 years.
Sir Bruce entertained audiences for more than seven decades.
Work in the tower will also pause over the bank holiday weekend.