London equities rose in opening deals on Tuesday, rallying gently after recent sharp losses on the back of the eurozone debt crisis.
The FTSE 100 index of leading companies advanced 0.37 percent to 5,773.93 points in early trade.
The blue-chip index closed sharply lower on Monday, amid uncertainty over the debt-ceiling impasse in Washington as well as the eurozone's battle to extinguish the blazing Greek debt crisis.
US stocks also took a beating on Monday, with the Dow Jones Industrial Average falling 92.34 points (0.74 percent) to stand at 12,387.39 in closing trade.
A bipartisan group of US senators is hurrying to cobble together a deal to raise the government's debt ceiling and prevent a potentially disastrous default by August 2.
Overnight Tokyo also suffered losses, with the Nikkei closing 0.85 percent, or 84.75 points, lower at 9,889.72.
Bourses across Europe rebounded on Tuesday however with Frankfurt's DAX 30 gaining 0.57 percent to 7,148.48 points, while in Paris the CAC 40 climbed 0.55 percent to 3,671.13.
An emergency eurozone summit will be held in Brussels later this week aimed at preventing a Greek default.