May 6 (Reuters) - Futures tied to Canada's main stock

index edged lower on Tuesday, as U.S. President Donald Trump's

fresh tariff threats renewed trade war fears, while investors

awaited the Federal Reserve's monetary policy decision.

June futures on the S&P/TSX index were down 0.1%

at 6:30 a.m. ET (1030 GMT).

Late on Monday, Trump said he plans to announce

pharmaceutical tariffs over the next two weeks, adding to the

levies rhetoric that has unsettled global financial markets and

kept investors on edge in recent months.

This follows Trump's tariffs on foreign-made movies, his

first on services, that were announced on Sunday.

The governors of six U.S. states said on Monday they have

invited Canadian provincial leaders to discuss the impact of the

tariffs while being critical of the measures taken by the U.S.

president.

Separately, Prime Minister Mark Carney said last week he was

expecting "difficult but constructive" talks with Trump on

Tuesday.

The focus will be on the Fed's two-day meeting, scheduled to

start later in the day, with the central bank widely expected to

stay put on interest rates. Investors will closely monitor

policymakers' comments for any hints of potential monetary

policy easing this year.

In commodities, gold prices rose to a two-week high.

Copper prices edged higher, buoyed by signs of U.S.-China

trade talks.

Oil gained more than $1 per barrel on Tuesday.

Canada's main stock index fell on Monday as a drop in oil

prices weighed on energy shares and investors reduced some risk

ahead of the Fed's interest rate decision this week.

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