Turkey's pro-Kurdish People's Democratic Party (HDP)'s co-chairman Selahattin Demirtaş, has said he will apply to parliament to waive his and 79 other deputies' legal immunity from prosecution on Tuesday. Demirtaş's move came after Nationalist Movement Party leader Devlet Bahçeli suggested that HDP be investigated by Turkish courts over an apparent failure to condemn violence by the terrorist group PKK. Under Turkish law, members of parliament have immunity from prosecution.Speaking to party members in Ankara on Tuesday, Demirtaş said: "With my 80 friends, we will submit a petition to the parliament to lift our immunity," adding: "If you are not afraid, let's lift immunities altogether."The HDP leader also suggested that only the voters of Turkey could close down his party, which was the first pro-Kurdish grouping to cross the country's electoral threshold, winning 80 seats in the parliament. However, the party has been accused of having links to the PKK.Demirtaş added: "Parties are opened by people and closed by people.""Those who gave us 13 percent of the vote today [in the June 7 election] may also give us one percent tomorrow; we respect that."Talks to end the armed conflict pitting the PKK against Turkish security forces had been ongoing since early 2012.Earlier today, Turkish Foreign Minister Mevlüt Çavuşoğlu urged the HDP to "act like a political party and cut ties with the terrorist PKK".