A suicide bomber on a motorcycle targeted a police compound housing foreign advisers in Kabul on Tuesday, killing four foreign security guards and wounding six, AP cited Afghan officials as saying. The attacker struck at the gates of the compound, which houses foreign advisers to the Afghan government as well as the office of the deputy minister for counter-narcotics in the heart of the country's capital, said deputy interior minister, Gen. Mohammad Ayoub Salangi. The nationality of the killed guards was not immediately disclosed. Taliban spokesman Zabihullah Mujahid claimed responsibility for the attack in a statement sent to media.