In the US, Wall Street closed higher Tuesday thanks to rising oil prices, while in Europe the indices were more mixed. John Terrett has more.

JOHN TERRETT NEW YORK STOCK EXCHANGE "Rising shares of energy and technology companies helped global stock markets regain ground on Tuesday, a day after a mounting trade fight pummelled equities, while oil surged more than 2 percent as Washington lobbied against Iranian crude imports. Wall Street closed higher, aided in part by energy shares that soared after a senior U.S. State Department official said Washington was telling its allies to stop importing Iranian crude oil. It was a choppy session for European shares on Tuesday, which initially saw a modest bounce after trade tensions triggered losses the previous day, but ran out of steam to close flat."