The appointment of Unilever executive Dave Lewis as Tesco chief executive will bring the company a "wealth of international consumer experience", Tesco's chairman has said.
Sir Richard Broadbent said the company's board felt Mr Lewis' leadership would "sustain and improve [Tesco's} leading position in the retail market".
Mr Lewis is replacing current chief executive Philip Clarke, a Tesco veteran who worked his way to the top job after beginning on the shop floor.
The 49-year old has spent 28 years at Unilever, the company behind a huge range of household brands including Flora, Dove, Wall's and PG Tips.
He was previously Unilever's UK and Ireland chairman, then president for the Americas before moving to his current role as Global President, Personal Care.
More top news
The treatment uses cancer-killing immune cells taken from donor blood, which are multiplied in the lab.
The Argentine navy announced that a sound thought to be an explosion had been detected by US and specialist agencies leading the search.
Earlier this month the Kill Bill star said she was too angry to share her thoughts on the allegations swirling around Hollywood.