KABUL Afghan security forces suppressed a suicide attack on a guest house attached to the Spanish embassy in Kabul, killing three Taliban fighters after hours of intermittent gunfire and explosions that lasted into the early hours of Saturday. Two Spanish security officers and four Afghan police were also killed in the attack, in a heavily protected part of Kabul close to several embassies and government buildings, Kabul police spokesman Basir Mujahid said. In Madrid, the Spanish government said all other embassy staff had been evacuated from the site and were receiving treatment