MOSCOW, April 23 (Reuters) - The Russian rouble slightly

strengthened against the U.S. dollar on Tuesday.

By 0727 GMT the rouble was 0.25% higher at

93.24 to the dollar after trading in a range of 93.20 to 93.460.

Against the euro, the rouble fell 0.19% to

99.49 but gained 0.08% to 12.84 against the yuan

.

Brent crude oil, a global benchmark for Russia's

main export, rose 0.4% to $87.31 a barrel.

Russian stock indexes rose. The dollar-denominated RTS index

was 0.08% higher at 1,175.16. The rouble-based MOEX

Russian index gained 0.08% to 3,481.88.

($1 = 93.3450 roubles)

(Reporting by Reuters)