The sub-group on security issues of the contact group on settling the situation in Ukraine could not agree on the text of a Treaty on the withdrawal from the line of contact of the arms with a caliber of 100 millimeters, said the press service of the Plenipotentiary of the self-proclaimed Donetsk people's Republic at the talks in Minsk Denis Pushilin. "The document until not agreed. There is a compromise that we are ready to sign, but the position of Ukraine in General has not changed ", - the press service quoted.