MADRID, Spain (AP) _ The armed Basque separatist group ETA claimed responsibility Friday for 12 attacks committed between May 9 and July 29, including the killing of two Spanish politicians.

In a statement published Friday by the Basque daily Euskaldunon Egunkaria, ETA admitted killing Jose Maria Martin Carpena, a town councilor of the governing Popular Party who was gunned down in the southern city of Malaga on July 12.

The group also said it was responsible for the July 29 assassination of Juan Maria Jauregui, 49, a Socialist Party politician and former representative of the Interior Ministry in the Basque region, who was shot twice in the head while vacationing in northern Spain.

The statement did not mention two car bombings and a shooting this week that left two people dead and 11 injured in different Spanish cities. Police and politicians have blamed ETA for those attacks as part of a recent offensive by the group.

The organization traditionally waits weeks or months to claim responsibility.

ETA, whose name is a Basque-language acronym for Basque Homeland and Freedom, also claimed responsibility for several bomb attacks, including one in a downtown Madrid shopping area that injured nine people, and two in a wealthy residential zone of a small Basque town in which no one was killed.

In the statement, ETA says that some of its attacks were aimed at leading members of the Basque business elite for not paying the so-called ``revolutionary tax,'' which is the money the group gets from extortion. Among others, the group cites Emilio Ybarra, chairman of the Spanish financial institution, Banco Bilbao Vizcaya Argentaria.

It also identifies attacks against prominent politicians, such as a senator of the Popular Party, and directors of newspapers in the Basque region.

The organization has killed nearly 800 people since 1968 in its campaign for the independence of three Basque provinces in northern Spain. Since ending a 14-month cease-fire in December, ETA has been blamed for nine deaths in around 20 attacks.