crane wrecks to advance. Streets were dug up. Liège saw the worst fighting on 6 January 1961. In all, 75 people were injured during seven hours of street battles." On 6 December 1985, the city's courthouse was heavily damaged and one person was killed in a bomb attack by a lawyer. Liège is also known as a traditionally socialist city. In 1991, powerful Socialist André Cools, a former Deputy Prime Minister, was gunned down in front of his girlfriend's apartment. Many suspected that the assassination was related to a corruption scandal which swept the Socialist Party, and the Belgian Federal Government in general, after Cools' death. Two men were sentenced to twenty years in jail in 2004, for involvement in Cools' murder. Liège has shown some signs of economic recovery in recent years with the opening up of borders within the European Union, surging steel prices, and improved administration. Several new shopping centres have been built, and numerous repairs carried out. On 13 December 2011, there was a grenade and gun attack at Place Saint-Lambert. An attacker, later identified as Nordine Amrani, aged 33, armed with grenades and an assault rifle, attacked people waiting at a bus stop. There were six fatalities, including the attacker (who shot himself), and 123 people were injured. On 29 May 2018, two female police officers and one civilian—a 22-year-old man—were shot dead by a gunman near a café on Boulevard d'Avroy in central Liège. The attacker then began firing at the officers in an attempt to escape, injuring a number of them "around their legs", before he was shot dead. Belgian broadcaster RTBF said the gunman was temporarily released from prison on 28 May where he had been serving time on drug offences. The incident is currently being treated as terrorism. Climate In spite of its inland position Liège has a maritime climate influenced by the mildening sea winds originating from the Gulf Stream, travelling over Belgium's interior. As a result, Liège has very mild winters for its latitude and inland position, especially compared to areas in the Russian Far East and the fellow Francophone province of Quebec. Summers are also moderated by the maritime air, with average temperatures being similar to areas as far north as in Scandinavia. Being inland though, Liège has a relatively low seasonal lag compared to some other maritime climates. Demographics On 1 January 2013, the municipality of Liège