US stock markets declined on Monday as investors assessed developments in the Middle East, following statements by the US President regarding the reinstatement of a blockade on Iran.
The S&P 500 Index fell 0.8% in New York, ending a two-day winning streak.
The technology-heavy Nasdaq 100 Index dropped 1.9%; Brent crude traded around $84 per barrel.
The US President stated that the US would restore a blockade on Iranian vessels transiting the Strait of Hormuz and demanded a 20% levy on all other cargo shipped through the waterway.
These latest developments further eroded market hopes for a peaceful resolution to the conflict, while rising energy prices reignited concerns about inflation and its potential to hinder economic growth.
A Federal Reserve Governor indicated that policymakers may need to raise interest rates in the near term if underlying inflation continues to show broad-based price pressures.
Technology stocks underperformed, weighed down by persistent geopolitical uncertainty and heightened inflation concerns. The information technology sector was the worst-performing group in the S&P 500.
"As global interest rates rise, investors are beginning to question the sustainability of tech-related spending, and the valuations of some tech and AI-related companies are once again coming into market focus," said the global investment strategy head at Wells Fargo Investment Institute.
In individual stock movements, SK Hynix ADRs fell 9.3%, pressured by renewed declines in South Korean artificial intelligence-related shares.
The US market faces a significant test this week with the release of several key economic data points and the full swing of the earnings season.
At the close, the S&P 500 Index was down 0.8% at 7,515.34.
The Dow Jones Industrial Average fell 0.3% to 52,498.64.
The Nasdaq Composite Index declined 1.6% to 25,873.18.
The Nasdaq 100 Index dropped 1.9% to 29,264.10.
The Russell 2000 Index decreased 0.8% to 2,953.166.

