A look at political unrest in the Middle East

A look at anti-government protests, political unrest and key developments in the Middle East on Saturday:

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LIBYA:

Moammar Gadhafi loyalists sweep into the opposition-held city closest to Tripoli, tightening security around the regime-held capital. To the east, rebel forces capture a key oil port as the country veers toward civil war.

The contrasting fortunes of the two warring sides suggest that the conflict in Libya could last for weeks and maybe months, with neither side mustering enough military power to decisively defeat the other. The government is fighting fiercely to maintain its hold in Tripoli and surrounding areas and the rebels are pushing their front …