An Iraqi Shi'ite Muslim opposition group said on Wednesday there had been disturbances, but no uprising, in the southern Iraqi city of Basra.A spokesman for the Tehran-based Supreme Council for Islamic Revolution in Iraq (SCIRI) said there were "some disturbances" in Basra. Asked if this amounted to an uprising, the spokesman, Abu Islam, said: "No, there is no uprising." British Prime Minister Tony Blair said on Wednesday he believed there had been a limited uprising in Basra overnight.

Republican Guard Heads Toward U.S. Troops

A large contingent of Iraq 's elite Republican Guard headed south in a 1,000-vehicle convoy Wednesday toward U.S. Marines in central Iraq - an area that already has seen the heaviest fighting of the war. In Baghdad, Iraqi officials said two cruise missiles hit a residential area, killing 14

Intelligence officers with the 1st Marine Expeditionary Force said the Republican Guard units were headed from Baghdad on a route that avoids advancing U.S. Army forces but leads directly to the Marines who have been fighting in recent days around the city of An Nasiriyah.

The advance appeared to signal that the Republican Guard, Saddam Hussein's best trained and most loyal force, was still prepared to take the offensive despite days of allied air strikes and missile attacks on its positions.

In the far south, British forces fought on the fringes of the beleaguered city of Basra, where Iraqi militiamen also faced a local uprising. The first substantial relief convoy reached the Iraqi port of Umm Qasr after weathering a blinding sandstorm in its trip north from Kuwait.

The U.S. Army's 3rd Infantry Division drew to within 50 miles of Baghdad, west of where the Republican Guard was advancing. Other American forces were expected to join soon in squeezing the capital from several directions.

A military source said the U.S. Central Command now had evidence that the Iraqi regime had wired many of the bridges around Baghdad for destruction.

Iraqi officials said the U.S. missile attack in Baghdad killed 14 and injured 30 in the Al-Shaab neighborhood, an area crowded with apartments, auto repair shops and inexpensive restaurants. Associated Press Television News footage showed a large crater in the middle of a street, a child with a head bandage, and bodies wrapped in plastic sheeting in a pickup truck.

Hundreds of people stood in front of a damaged building, some shaking fists in the air and shouting.

U.S. Central Command was checking the report of the missile attack.

En route to Baghdad, units from the 7th Cavalry Regiment fought a fierce running battle with Iraqi forces near the central city of Najaf. According to preliminary reports from American military officials, U.S troops killed up to 500 Iraqi fighters, suffering the loss of two tanks but no casualties.

Hoping to cripple the Iraqi government's communications, the allies attacked the state-run television headquarters in Baghdad before dawn Wednesday with missiles and air strikes.

The station's international satellite signal was knocked off the air for a few hours; broadcasts were intermittent after daybreak.

Iraq's information minister, Mohammed Saeed al-Sahhaf, accused the U.S.-British coalition of striking civilian areas in several cities, notably An Nasiriyah, where he said more than 500 people were injured and 200 homes destroyed. Al-Sahhaf also contended that the allies did not have full control of Umm Qasr, where the food convoy arrived, and were holding only the dock area.

Around Basra, British forces on the edge of the city waged artillery battles with more than 1,000 Iraqi militiamen, who reportedly also faced some sort of insurrection by Shiite Muslim civilians opposed to Saddam.

"Truthfully, the reports are confused, but we believe there was some limited form of uprising," British Prime Minister Tony Blair told Parliament members Wednesday. "Once people know that Saddam's grip on power is being weakened, then there is no doubt at all that they wish to opt for freedom rather than repression."

British officers said the Basra uprising became enough of a threat that the militiamen fired mortars to try to suppress it.

British forces then silenced the Iraqi mortar positions with an artillery barrage, spokesman Lt. Col. Ronnie McCourt said.

McCourt said British troops also were firing at some of the militiamen who were trying to flee Basra.

Iraqi officials have denied there was any uprising in Basra.

The British - while awaiting an opportune moment to enter the heart of Basra - have been telling residents over loudspeakers that aid is waiting outside the city. Relief officials say many of the 1.3 million residents are drinking contaminated water and face the threat of diarrhea and cholera.

British forces staged a raid on a suburb of Basra, capturing a Baath party leader and killing 20 of his bodyguards, officials said.

Assigned to bring aid to another battle-scarred southern city, a seven-truck relief convoy - loaded with food and water - left Kuwait and reached the port of Umm Qasr on Wednesday.

"We planned for 30 trucks but we only got seven loaded because of the severe sandstorm," said E.J. Russell of the Humanitarian Operations Center, a joint U.S.-Kuwaiti agency. The storm cut visibility to about 100 yards.

A handful of Iraqi children watched the convoy cross into Iraqi territory. One boy, about 10, pointed to his mouth and shouted, "Eat, eat!"

Plans to bring supplies to Iraqi civilians have been stalled for days because of fighting across southern Iraq.

U.S. officials have blamed Saddam's regime for slowing the flow of aid by placing mines in Umm Qasr's harbor, which serves much of the south. U.S. Navy helicopters flew two dolphins into Umm Qasr to help locate mines.

U.S. units in central Iraq appear to be shifting their strategy because of the attacks from Iraqi militiamen. Instead of racing to Baghdad, some units are moving slower to clear out pockets of opposition.

"We're going into a hunting mode right now," said Lt. Col. B.T. McCoy of 3rd Battalion, 4th Marines. "We're going to start hunting down instead of letting them take the cheap shots."

PHOTO CAPTION

In this image from video, Iraqis begin filling a large hole in Baghdad Wednesday, March 26, 2003. (AP Photo/SABC VIA APTN)