By James Macharia and Humphrey Malalo NAIROBI, March 11 (Reuters) - Kenya's Supreme Court will handle any challenge to the result of last week's presidential election in a fair and speedy manner, the chief justice said on Monday, two days after defeated candidate Raila Odinga threatened legal action over the outcome.

* FTSEurofirst 300 down 0.4 percent * Fitch Italy downgrade hits banks * Austere regulatory environment knocks UK lenders * Norway's DNB lower on provision concerns * Drugmaker Elan rallies on $1 bln share buyback By David Brett LONDON, March 11 (Reuters) - European stocks pulled back from more than four-year highs on Monday as banking shares tumbled after Italy's credit downgrade and due to potentially austere regulatory measures in the UK. By 1134 GMT, the FTSEurofirst 300 was down 4.98 points, or 0.4 percent, at 1,190.22.

Singh was accused by police of being the ringleader in the fatal gang-rape of a 23-year-old student on a moving bus in New Delhi last December in a case that prompted outrage and soul-searching over India's treatment of women.

Greece's ailing economy contracted by 5.7 percent in the fourth quarter of 2012 in an annual comparison, provisional data from the state statistics agency showed on Monday. The agency said the contraction was slightly lower than the previous estimate of 6.0 percent for the fourth quarter announced a month ago. Combined with contraction data given for the first, second and third quarters, Greece's economy shrank by 6.4 percent in 2012. This is slightly better than the 6.5 percent estimate contained in Greece's current budget.