MOSCOW (AFP) - Russian motorists held protests across the country on Saturday against petrol prices that are rising despite Russia's status as the world's second biggest oil producer. Echo of Moscow radio station quoted an organiser as saying that 30 motorists were detained at one protest in the northern city of Saint Petersburg. A police spokesman said he had no information about any detentions. Protests were held in dozens of other Russian cities, including in the Far East and Siberia, Interfax news agency quoted an organiser as saying. In central Moscow, around 100 motorists gathered near the Kremlin to demand lower petrol prices. "Those people in their government cars don't know the cost of petrol" one of the speakers said at the Moscow rally, as protesters waved green-and-white banners against fuel prices and the poor state of Russia's roads. "The price of petrol on the domestic market is too high for an oil exporting country," Vyacheslav Lysakov, the head of the Russian motorists association that is organising the campaign, told AFP ahead of the protests. Lysakov accused the government of "profiting" from price rises by imposing taxes of up to 70 percent on fuel and said the money should be used to upgrade Russia's notoriously ill-repaired roads. Russia is the world's second biggest oil producer and exporter after Saudi Arabia but it has seen price rises similar to those in other countries. Petrol prices has gone up nine percent since the start of the year to an average of 0.57 euro (0.9 dollars), official data published this week showed. Meanwhile, angry students hurled molotov cocktails at police after Indonesia hiked the cost of gasoline by 33 percent Saturday to rein in subsidies that are exploding along with world oil prices. More than 100 protesters were arrested as students burned tyres and threw homemade fire-bombs outside the National University in Jakarta in response to the midnight price hike, police said. Other rallies broke out in the second city of Surabaya, where students commandeered a fuel truck from state-owned oil and gas company Pertamina, and in Bandung where hundreds of hardline Muslims marched through the streets. The price hike took effect at midnight in response to soaring global oil prices and a ballooning subsidy bill that is straining the budget and sucking state funds away from basic services and infrastructure. Long queues formed at petrol stations ahead of the announcement Friday and 26 demonstrators were arrested at a protest at the presidential palace overnight. Millions of Indonesians live on less than two dollars a day and protesters say higher fuel prices combined with the recent surge in the cost of food will put an intolerable strain on family budgets. Indonesian motorists are now paying 33.3 percent more to fill their tanks with premium gasoline at 6,000 rupiah (65 cents) a litre, while diesel fuel for transportation has leapt 27.9 percent to 5,500 rupiah. "We will fight against this abuse of power by the government. It's unacceptable," protest organiser Wardah Hafidz, of the Urban Poor Consortium, told AFP. "The fuel hike will be followed by rises in the price of basic food, education and transport fares, meaning more people won't have money to educate or feed their children. This country will collapse." Vice President Jusuf Kalla defended the police, at least four of whom were injured in the protests. "Police have to be firm against any anarchic protests. Protesters that block the roads must be arrested. Democracy doesn't allow any road-blocking," he was quoted as saying by Detikcom online news service. The price hike has sparked protests across the sprawling archipelago of 234 million people since it was flagged earlier this month by President Susilo Bambang Yudhoyono. The president had promised not to raise fuel costs until after elections next year, but with oil prices smashing records above 130 dollars a barrel this week the government felt it had no choice but slash subsidies. Analysts welcomed the rises and said other Asian counties would have to follow suit or watch their budgets break under the weight of massive fuel subsidies. "I think this move is positive for Indonesia in terms of its fiscal position," Royal Bank of Scotland economist Euben Paracuelles said in Singapore on Friday. "It looks like that's where most governments are heading right now." Taiwan's new government has decided to end a freeze on domestic gasoline prices from June, while Malaysia is reportedly looking at making wealthy consumers pay more for fuel under a new two-tier subsidy system. Even regional giant India is reeling from the oil price onslaught, with the petroleum secretary admitting Friday that a fuel price hike was "inevitable" to bail out state oil firms selling at hugely discounted rates. To soften the blow, Jakarta is offering direct cash transfers to the poor amounting to 14.1 trillion rupiah (1.5 billion dollars). The government was at pains to point out that even with the price hike Indonesians still enjoyed some of the cheapest fuel in the world. But Vice President Kalla said the government was not afraid to adjust prices even higher in Southeast Asia's biggest economy if the oil markets continued to climb. The last fuel price rise in Indonesia was a whopping 126 percent in 2005, sparking mass demonstrations but no long-term unrest.