Anti-government protesters battle with police in Albania

This video can not be played Watch: The BBC reports from Tirana, where violent protests grew on Saturday Demonstrators and riot police fought pitched battles in the centre of Tirana on Saturday for the fifth day in a row. Masked protesters, many of them high school and university students, hurled rocks and petrol bombs at riot police trying to defend the education ministry, one of the focal points of the protests. The police responded with water cannon and volleys of tear gas, sending the crowds scattering. There are also reports that rubber bullets were used for the first time. Protests which began in the summer have grown into a wider anti-government movement, with calls for the prime minister to resign following corruption allegations linked to his administration. Many of the protesters in central Tirana wore gas masks or face masks, while volunteers handed out syringes of saline eyewash to reduce the pain from the tear gas which billows down the street. The constant boom of petrol bombs could be heard exploding on Saturday. During the afternoon, the focus of the protests shifted to the office of Prime Minister Edi Rama on the city's main boulevard. Here the crowds swelled to far larger numbers than on previous days. Riot police faced a steady hail of cobble stones and fireworks, and responded with barrage after barrage of tear gas, some of the canisters landing far back in the crowds, causing panic. Incensed , the crowds waited for it to clear, then renewed their attacks. Demonstrators come equipped to clean tear gas from people's eyes Black smoke from a burning vehicle and the sirens of police cars and ambulances split the afternoon. As dusk fell, police special forces arrived to reinforce the riot police. Many people have been injured on both sides, 80 people have been charged with disorder so far, and hundreds more have been arrested, or are under investigation. The centre of the Tirana looks increasingly like a war zone, scattered with broken glass and burnt debris. George, a 19-year-old medical student who works as an electrician to fund his studies, stood near the burnt-out education ministry building, a scarf wrapped round his face and goggles covering his eyes. He is one of the thousands who have taken part in the increasingly intense protests which began in early June. In his gloved hands he clutched two rocks intended for the police. Asked if he was concerned about injuring them, he said: "We have mothers too.