Hezbollah gunmen seize control of Beirut neighborhoods

The takeover by the Iranian- and Syrian-backed Hezbollah was a blow to U.S. policy as President Bush's administration has been a staunch supporter of the government in Beirut over the last three years.

"We are very troubled by the recent actions of Hezbollah," White House spokesman Gordon Johndroe said Friday.

"We urge Hezbollah to stop their attempt to defy the lawful decisions taken by the democratically elected Lebanese government. We also urge Iran and Syria to stop their support of Hezbollah and its destabilizing effects on Lebanon," he added.

The fighting also was certain to have implications for the entire Middle East at a time when Sunni-Shiite tensions are high. The tensions are fueled in part by the rivalry between predominantly Shiite Iran, which sponsors Hezbollah, and Sunni Arab powers in the region such as Saudi Arabia and Egypt.

The leaders of Qatar and Syria held talks on Lebanon in Damascus, which wields influence with Hezbollah and has close relations with Iran. Syria's official news agency said the two sides agreed the conflict in Lebanon was an internal affair and expressed hope the feuding parties would find a solution through dialogue.

About 100 Shiite Hezbollah militants wearing matching camouflage uniforms and carrying assault rifles marched down Hamra Street, a normally vibrant commercial strip in a mainly Sunni area of Beirut. They took up positions in corners and sidewalks and stopped the few cars braving the empty streets to search their trunks.

On nearby streets, dozens of fighters from another Hezbollah-allied party appeared, some wearing masks and carrying rocket-propelled grenade launchers.

The Hezbollah takeover was peaceful in some neighborhoods as the militants fanned out across the Muslim sector of the city.

Later in the day, Lebanese troops began taking up positions in some Sunni neighborhoods abandoned by the pro-government groups, but did not intervene in the clashes, which had largely tapered off into sporadic gunfire by early afternoon. Some of the gunfire was celebratory in the air by the militants.

A senior security official said the army began deploying on some streets with the end of the clashes and would soon take over the Sunnis' last stronghold of Tarik Jadideh. The official spoke on condition of anonymity because he was not authorized to speak to the media.