Flags flew at half mast yesterday at Parliament House to mark the death of Mr Jek Yeun Thong, a key member of the People's Action Party Old Guard. Mr Jek, who served in Singapore's first Cabinet and was one of the 10 ministers who signed the Separation Agreement in 1965, died at home on Sunday at the age of 87. Mr Jek had served in various capacities, including as minister for labour as well as in other ministerial portfolios from 1963 to 1980. He was also high commissioner to the United Kingdom and concurrently ambassador to Denmark, and remained a Member of Parliament until 1988.