Financial markets reopened Monday with investors squarely focused on escalating geopolitical tensions as Israel and Iran continue to bombard each other with no sign of a pause.Oil jumped in early Asia trading after Israel on Sunday reported new missile attacks from Iran,

By Saqib Iqbal Ahmed, Suzanne McGee and Linda Pasquini NEW YORK/GDANSK (Reuters) -Investors were on edge as financial markets reopened on Sunday, with crude oil prices initially up near 4% as markets were gripped by the escalating threat of a sweeping conflict in the Middle East.

U.S. oil prices already jumped last week, which could cause prices at the pump to rise about 20 cents a gallon in the coming weeks, according to one estimate.