French police have arrested 11 employees and subcontractors of chemical firm AZF in connection with the explosion at the company's Toulouse plant last September.
Thirty died and more than 2,000 were injured in the disaster which a police spokesman described as 'a chemical accident'.
Consultant Yolles has been appointed as civil engineer for the Great Leighs racecourse between Chelmsford and Braintree in Essex. It is the first racecourse to be built in the UK since 1927. Planning permission has been obtained for a glass fronted, five storey building with grandstand seating for 2,000 and standing for 5,000 people.
A CD and reference booklet has been launched by materials company RMC Aggregates that will show brickmakers the shade and tint of particular sand when it has been fired.