Twelve people sustained injuries in a Ukraine drone attack on the Russian border city of Belgorod, authorities said early Friday. Russian officials reported damage to residential buildings and infrastructure following the overnight assault.

The attack drove an immediate flight to quality in global bond markets. The two-year Treasury yield fell three basis points to 4.86 percent, while the 10-year yield dropped five basis points to 4.32 percent—a steeper move at the long end that flattened the curve as investors rotated into duration. The spread between two- and 10-year Treasuries narrowed to 54 basis points.

Geopolitical uncertainty typically widens credit spreads as investors demand greater compensation for corporate risk. Analysts anticipate potential widening in investment-grade and high-yield corporate bond spreads if tensions persist, prompting a re-evaluation of fixed-income allocations away from corporate credit.

Central banks already facing complex inflation and growth dynamics face additional pressure from escalating geopolitical risk. Disruptions to global supply chains or energy prices could complicate the inflation outlook for major economies, potentially pushing the Federal Reserve toward a more cautious stance if stability concerns mount. The European Central Bank and Bank of England would weigh the same factors in upcoming policy assessments.

Equity markets reflected the risk-off shift. The Nasdaq fell 0.6 percent to 24,976, while the Russell 2000 dropped 0.3 percent to 2,930.