MOSCOW, March 25 (Reuters) - The rouble hit a one-week

low past 93 to the dollar on Monday as the Russian market

reopened after a deadly shooting rampage near Moscow on Friday

evening, with the Russian currency supported by high oil prices

and month-end tax payments.

Russia lowered flags to half-mast for a day of mourning and

charged four men it accused of gunning down scores of people at

a concert outside Moscow on Friday night in the deadliest attack

inside Russia for two decades.

At 0730 GMT, the rouble was unchanged against the dollar at

92.81, having dipped to a one-week low in early

trade. It had lost 0.1% to trade at 100.36 versus the euro

and shed 0.3% against the yuan to 12.78

.

Investors were also reacting to Friday's interest rate hold

at 16%. The Bank of Russia warned that inflationary pressure

remained high and that tight monetary conditions would be

maintained for a long time to try to return inflation to the

bank's 4% target.

Brent crude oil, a global benchmark for Russia's

main export, was up 0.4% at $85.76 a barrel.

The rouble should also be supported this week by month-end

taxes that usually see exporters convert foreign currency

revenues to pay local liabilities.

Russian stock indexes were lower.

The dollar-denominated RTS index was down 0.5% to

1,107.0 points. The rouble-based MOEX Russian index was

0.4% lower at 3,259.5 points.

For Russian equities guide see

For Russian treasury bonds see