Morning in brief: Obama and Cameron to act over oil prices

UK prime minister David Cameron and US president Barack Obama have discussed releasing oil reserves as prices continue to rise.

No decision was made as the British prime minister visited Washington DC, but rising fuel prices could be a key election issue for a US leader, reports Reuters.

London remains the top city in the world for investment, according to “Big Four” accountancy firm KPMG, the BBC reports.

Tesco’s UK chief executive has stepped down a year since taking over the job, writes the Daily Telegraph.

Delaying the restructure of Greek debt helped reduce banks’ potential losses as risk was shifted to European taxpayers, according to Bloomberg.