Stock markets in the Gulf rose in early trade on Thursday, extending gains from the previous sessions amid rising oil prices as a ceasefire between Israel and Iran appeared to be holding.

It took a CBS News crew more than 14 hours to drive south from Turkey to Tehran, a nearly 600-mile trip made longer by checkpoints and bad roads.

With questions mounting over the impact of the U.S. and Israeli onslaught on Iran's nuclear facilities and military infrastructure, a return to hostilities could be a matter of when, not if.