MOSCOW, April 8 (Reuters) - A sharp drop in global oil

prices triggered by U.S. President Donald Trump's tariffs poses

a risk to the Russian economy, the state TASS news agency cited

Elvira Nabiullina, the governor of Russia's central bank, as

saying on Tuesday.

She was quoted as saying that the central bank was analysing

the fallout, but saying that a technical budget rule would

smooth out the consequences for the budget.