Most Asian stock indexes rose on Friday after Wall Street continued its surge for a third day and oil prices surpassed $105 per barrel.

After days of shelling of civilian areas in several cities, Ukrainian President Volodymyr Zelenskyy called for further assistance for his country.

The conflict, as well as U.S. President Joe Biden's planned meeting with Chinese President Xi Jinping later Friday, were among the uncertainty that hung over the markets.

The discussion will focus on "managing the competitiveness between our two countries, as well as Russia's conflict against Ukraine and other matters of mutual concern," the White House said.

The Bank of Japan decided to maintain its monetary policy unchanged after a two-day meeting, keeping its benchmark interest rate at minus 0.1%.

For years, Japan's central bank has kept interest rates extremely low while injecting tens of billions of dollars into the world's third largest economy in an attempt to boost growth.

The Nikkei 225 index in Tokyo increased by 0.7 percent to 26,827.43, while the S&P/ASX 200 in Sydney increased by 0.6 percent to 7,294.40.

As barreling significantly higher for two days, Hong Kong's Hang Seng reclaimed lost ground, gaining 0.5% to 21,587.19 after Chinese authorities promised to give more support for the economy and markets, signaling Beijing might ease its bans on technology and real estate sectors.

Shanghai Composite index rose 1.3% to 3,254.96 points.

The S&P 500 index rose 1.2 percent on Thursday, closing at 4,411.67, after gaining more than 2% in each of the previous two days for its greatest back-to-back performance in over two years.

Investors are struggling to predict what will happen to the economy and the world's already high inflation as a result of Russia's invasion of Ukraine, rising interest rates from central banks throughout the world, and revived COVID-19 concerns in various regions.

The Dow Jones Industrial Average is now at 34,480.76, up 1.2%. The Nasdaq Composite Index increased 1.3%  to 13,614.78. The tech-heavy index is on track to post its largest weekly increase in over a year.

Stocks of smaller companies outperformed the larger market. The Russell 2000 index increased by 1.7% to 2,065.02 points.

The market's recent gains come after the Federal Reserve hiked its benchmark interest rate for the first time in 2018 on Wednesday, a move that Wall Street has been anticipating for months.

In computerized trading on the New York Mercantile Exchange, a barrel of U.S. crude oil rose $2.92 to $105.90 per barrel. It closed at $102.98 on Thursday, up 8.4%.