LONDON (Reuters) - Trading in UBS shares was briefly halted on Wednesday, after Bloomberg reported the Swiss bank and defunct rival Credit Suisse (SIX:CSGN) face a growing U.S. probe over alleged Russian sanctions evasion.
UBS shares dropped as much as 7.9% by 1049 GMT, before being halted. Trading was reinstated at 1054 GMT and shares regained some ground, last down 4.2%.
A broader index of European banks was flat on the day%.
UBS shares are still up by nearly 50% since the four-month lows hit in late March, as it kicked off its emergency takeover of Credit Suisse, and are trading near their highest in 15 years.
UBS was not immediately available for comment when contacted by Reuters.