Protesters attack car containing Prince Charles

Angry protesters in London have attacked a car containing Prince Charles, the heir to the British throne, and his wife Camilla, Duchess of Cornwall.

An Associated Press photographer saw demonstrators kick the car in Regent Street, in the heart of London's shopping district. The car then drove off.

The prince's office had no immediate comment.

Protesters angry at a huge tuition fee hike are fighting with police and smashing windows in London.

THIS IS A BREAKING NEWS UPDATE. Check back soon for further information. AP's earlier story is below.

British lawmakers on Thursday approved a controversial plan to triple university tuition fees by a narrow margin after some government legislators rebelled amid violent protests outside Parliament.

The plan to raise the cap on tuition fees to 9,000 pounds ($14,000) was approved, 323-302 in the House of Commons, a close vote given the government's 84-seat majority.

The tuition vote posed a crucial test for governing Conservative-Liberal Democrat coalition, and for the government's austerity plans to reduce Britain's budget deficit.

Outside Parliament, police with riot shields and batons tussled with angry student protesters, keeping them away from the building.

Many in the thousands-strong crowd booed and chanted "shame" when they heard the result of the vote, and pressed against metal barriers and lines of riot police penning them in.

There was a standoff as the Metropolitan Police force said the "extreme violence currently being directed towards officers" was making it hard to let demonstrators disperse.

Earlier small groups of protesters threw flares, billiard balls and paint bombs, and officers, some on horses, rushed to reinforce the security cordon. Police said 13 protesters and eight officers were injured, while seven people were arrested.

The scuffles broke out after students marched through central London and converged on Parliament Square, waving placards and chanting "education is not for sale" to cap weeks of nationwide protests aimed at pressuring lawmakers to reverse course.

The vote put Deputy Prime Minister Nick Clegg and his Liberal Democrat party in an awkward spot. Liberal Democrats signed a pre-election pledge to oppose any such tuition hike, and reserved the right to abstain in the vote even though they are part of the governing coalition proposing the change.

Those protesting in central London were particularly incensed by the broken pledge from Clegg's party.

"I'm here because the Liberal Democrats broke their promise," said 19-year-old Kings College student Shivan David from London's Trafalgar Square. "I don't think education should be free but I do think that tripling fees doesn't make any sense. We are paying more for less."

Inside the House of Commons and to the jeers from the opposition lawmakers, Liberal Democrat Business Secretary Vince Cable insisted that the new tuition plans were "progressive" as a heated debate over the proposal began.

Many in his party disagreed, and 21 Lib Dem lawmakers — more than a third of the total — voted against the fee hike. Another eight, including at least one government minister, abstained.

Demonstrator John Dawson, 16, admitted that it might be too late to change lawmakers' minds but said protesters must keep up the fight.

"The fact that so many students came out to protest today shows that, even after the vote, they will still do whatever they can to avoid paying this much for higher education," he said.

Experts warned that fallout from the policy could pose a greater risk after the vote.

"The real danger for the government is not that they won't pass it through, but that it will be a policy fiasco," said Patrick Dunleavy, a political science professor at the London School of Economics. "By picking this fight with the student body ... the government seems to have gotten itself into choppy water."

All of this has made Clegg one of the least popular politicians on university campuses. Protesters chanting "Nick Clegg, shame on you for turning blue" underscored the sense of betrayal.

Clegg defended the proposals, saying the plans represent the "best possible choice" at a time of economic uncertainty.

"In the circumstances in which we face, where there isn't very much money around, where many millions of other people are being asked to make sacrifices, where many young people in the future want to go to university, we have to find the solution for all of that," Clegg told the BBC.

Cameron's government describes the move as a painful necessity to deal with a record budget deficit and a sputtering economy. To balance its books, the U.K. passed a four-year package of spending cuts worth 81 billion pounds, which will eliminate hundreds of thousands of public sector jobs and cut or curtail hundreds of government programs.

The government proposed raising the maximum university tuition fees in England from 3,000 pounds a year to 9,000 pounds. Students reacted with mass protests that have been marred by violence and have paralyzed some campuses.

In response, the government modified its plan by raising the income level at which graduates must start repaying student loans and by making more part-time students eligible for loans.

Students have said the concessions are not enough to lessen the blow of higher fees. They say that under the proposal, piles of debt will plague graduates and make a well-rounded education unattainable for many.

The controversy has highlighted regional educational differences in the United Kingdom.

The Welsh regional government has pledged to subsidize the higher fees for any student from Wales who enrolls at an English university. Student fees in Scotland are just 1,820 pounds per year, sparking fears of a future stampede of bargain-hunting students from England. Northern Ireland's fees are capped at 3,290 pounds a year.