Syria: Dozens killed in blasts at Aleppo public square From Saad Abedine, CNN October 3, 2012 -- Updated 1055 GMT (1855 HKT) The destruction left by three car bomb explosions in the northern city of Aleppo on October 3, 2012. Opposition group: At least 40 people are killed in explosions targeting government forces State-run TV shows the bloodied bodies of men in military uniforms One more car bomb explodes near Aleppo's chamber of commerce The UK pledges an additional 1 million pounds to help Syrian refugees endure the Turkish winter (CNN) -- A wave of blasts targeting Syrian government forces killed dozens of people in a popular square Wednesday, opposition activists said. At least 40 people were killed and about 90 others wounded when three car bombs exploded in Aleppo's Saadallah Al-Jabiri square, the Syrian Observatory for Human Rights said. The opposition group said most of the casualties were government forces. Syrian state-run TV, meanwhile, aired footage of the carnage, which included the bloody and mangled bodies of men in military uniforms. The government said at least 25 people were killed and 75 wounded. A fourth car bomb exploded near Aleppo's chamber of commerce, the government and opposition said. The number of casualties from that incident was not immediately known. The blasts highlight the escalating crisis in Aleppo, Syria's largest city and a commercial hub that has morphed into a major battleground between government and rebel forces. Aleppo is also a major financial lifeline for President Bashar al-Assad's government; a takeover of the city by rebels would deal a significant blow to four decades of al-Assad family rule. More than 28,000 people have been killed across Syria since March 2011, the opposition Local Coordination Committees of Syria said. In other developments: UK steps up aid for Syrian refugees in Turkey The United Kingdom will provide an additional 1 million pounds ($1.6 million) to help Syrian refugees through the Turkish winter, Deputy Prime Minister Nick Clegg said Wednesday. Refugees from Syria face what is likely to be a bitterly cold winter. The supplies this extra funding will deliver will go some way to helping them through this difficult time," Clegg said in a statement. The United Kingdom has given 38.5 million pounds ($62 million) in humanitarian aid during the Syrian crisis. The added funding is expected to help about 10,000 refugees with supplies such as blankets, clothing and heaters Turkey has taken in more than 93,000 Syrian refugees -- more than any other country in the region. CNN's Holly Yan and Ivan Watson contributed to this report. October 2, 2012 -- Updated 1401 GMT (2201 HKT) A video uploaded to YouTube appears to show a blindfolded American freelance journalist weeks after he was last heard from in Syria. Syrian forces are uprooting thousands of people and then demolishing their homes, according to residents in Hama.