that the government was conducting negotiations with jailed rebel leader Öcalan. On 21 March 2013, after months of negotiations with the Turkish Government, Abdullah Ocalan's letter to people was read both in Turkish and Kurdish during Nowruz celebrations in Diyarbakır. The letter called a cease-fire that included disarmament and withdrawal from Turkish soil and calling an end to armed struggle. The PKK announced that they would obey, stating that the year of 2013 is the year of solution either through war or through peace. On 25 April 2013, the PKK announced that it would be withdrawing all its forces within Turkey to northern Iraq. On 6 and 7 October 2014, riots erupted in various cities in Turkey for protesting the Siege of Kobani. Protesters were met with tear gas and water cannons; 37 people were killed in protests. Following the July 2015 crisis (after ISIL's 2015 Suruç bombing attack on Kurdish activists), Turkey bombed alleged PKK bases in Iraq, following the PKK's unilateral decision to end the cease-fire (after many months of increasing tensions) and its suspected killing of two policeman in the town of Ceylanpınar (which the group denied carrying out). Violence soon spread throughout the country. Many Kurdish businesses were destroyed by mobs. The headquarters and branches of the pro-Kurdish rights Peoples' Democratic Party were also attacked. There are reports of civilians being killed in several Kurdish populated towns and villages. The Council of Europe raised their concerns over the attacks on civilians and the blockade of Cizre. In 2008 and also in the indictment in the Peoples' Democratic Party closure case the demand for education in Kurdish language or the teaching of the Kurdish language was equated of supporting terrorist activities by the PKK. By 2017, measures taken to curtail efforts to promote Kurdish culture within Turkey had included changing street names that honored Kurdish figures, removing statues of Kurdish heroes, and closing down television channels broadcasting in the Kurdish language. In July 2020, Turkey's Council of Higher Education banned students studying the Kurdish language and literature at Turkish universities from writing their dissertations in Kurdish. Politics Kurdish politicians are exercising politics in Turkey's mainstream political parties, as well as smaller parties. Mehmet Mehdi Eker (Agriculture), Mehmet Şimşek (Finance) and Bekir Bozdağ (Deputy Prime Minister) are examples of ministers with Kurdish background who worked as ministers in the 61st government of Turkey. There are also political parties