While the advance by the Wagner mercenary force led by Yevgeny Prigozhin was called off before it reached Moscow, analysts said the rebellion showed President Vladimir Putin's grip on power was more fragile than previously thought.

It also added to unease on trading floors, where investors last week reversed a recent rally in stocks owing to concerns about ever-rising interest rates aimed at fighting stubborn inflation.

Traders on Monday appeared to take the events in stride, with Hong Kong, Tokyo, Sydney, Seoul, Taipei, Manila, Jakarta and Wellington moving in and out of positive territory in the morning.

And oil prices saw only small gains.

The revolt came after Prigozhin had railed for months against the Russian military's handling of the war in Ukraine.

But Wagner mercenaries returned to their base Sunday after Putin agreed to allow Prigozhin to avoid treason charges and accept exile in neighbouring Belarus.

However, US Secretary of State Antony Blinken said the events exposed "real cracks" in Putin's rule.

The agreement halted an escalation of the crisis but observers warned that markets were susceptible to any further instability in Russia.

"Even though the Prigozhin mutiny may not cause larger market movements directly, this could quickly change depending on how the political situation in Russia unfolds in coming months," Erik Meyersson, at SEB AB, said.

"Markets will likely become more sensitive to internal political matters in Russia."

Investors were also keeping tabs on comments from Federal Reserve officials, hoping for clarity on their monetary policy plans after boss Jerome Powell last week warned rates would likely keep rising.

His comments dealt a blow to hopes the bank had come to the end of its tightening cycle, and came as authorities elsewhere announced further hikes.

On Friday, Atlanta Fed chief Raphael Bostic said he would be "comfortable" holding borrowing costs where they are for the rest of the year, though San Francisco president Mary Daly warned two more quarter point hikes are a "very reasonable projection".

Both, however, said decisions would be data-dependent.

There is a growing worry among investors that the tightening cycle around the world could hammer the global economy, with the eurozone already tipping into technical recession at the start of the year.

There is also a focus on China and leaders' support plans for the world's number two economy as its recovery from years of zero-Covid restrictions falters.

Traders were left disappointed last week by a lack of detail on how to kickstart growth, with a market rally sparked by interest rate cuts running out of steam.

- Key figures around 0230 GMT -

Tokyo - Nikkei 225: UP 0.2 percent at 32,846.24 (break)

Hong Kong - Hang Seng Index: DOWN 0.5 percent at 18,801.70

Shanghai - Composite: DOWN 1.4 percent at 3,153.01

Euro/dollar: UP at $1.0907 from $1.0896 on Friday

Pound/dollar: UP at $1.2737 from $1.2717

Dollar/yen: DOWN at 143.45 from 143.74 yen

Euro/pound: DOWN at 85.64 pence from 85.66 pence

West Texas Intermediate: UP 0.4 percent at $69.43 per barrel

Brent North Sea crude: UP 0.3 percent at $74.24 per barrel

New York - Dow: DOWN 0.7 percent at 33,727.43 (close)

London - FTSE 100: DOWN 0.5 percent at 7,461.87 (close)