In pictures: Turkey mourns boy killed in protestsPublished12 March 2014Shareclose panelShare pageCopy linkAbout sharingImage caption, Tens of thousands have joined the funeral cortege of Berkin Elvan in the Turkish city of Istanbul. The 15-year-old died on Tuesday after spending nine months in a coma as a result of injuries sustained in anti-government protests last June.Image caption, Crowds of people spilled out onto the streets to catch a glimpse of the coffin. Berkin Elvan had only been a passer-by when he was wounded during clashes with police in Istanbul. The teenager was struck on the head by a tear gas canister while walking to buy bread.Image caption, Berkin Elvan's death has sparked protests in cities and towns across the country. Here, Turkish lawyers in the capital, Ankara, are seen holding loaves of bread and newspapers with a photo of the boy's mother, Gulsum Elvan. She has accused Prime Minister Recep Tayyip Erdogan of being a "killer".Image caption, While there is no visible police presence in Istanbul, security forces have been deployed in the capital, Ankara, to quell the unrest there.Image caption, Riot police used tear gas and water cannon to disperse protesters in central Ankara. Correspondents say Berkin Elvan's tragic story has become a symbol of the heavy-handed tactics used by police to rein in the biggest demonstrations against the prime minister.Image caption, Some people in Ankara resorted to wearing cling film in order to protect themselves from the tear gas...Image caption, ...while others, like this man, were caught in Wednesday's clashes.Image caption, A police officer kicks the flag of an anti-government protester in Ankara. Appealing for calm, President Abdullah Gul said Turkey was going through difficult days and that the "mind of the state has become overwhelmed by anger and hatred".Image caption, Police arrest a demonstrator in Ankara. The renewed unrest is likely to further rattle Mr Erdogan, whose government has been rocked by an escalating corruption scandal ahead of elections due to be held later this month.