The Ministry of Interior (MoI) officials confirmed that the former General of the Ministry Zalmay Wardak was killed on Thursday night.
Deputy MoI spokesman Nusrat Rahimi confirmed that the incident took place in the vicinity of the 2nd police district of the city.
He said unknown attacked Mr. Wardak in Karte Parwan area of the city, leaving him dead.
According to Rahimi, an investigation has been launched in connection to the incident and efforts are underway for the arrest of the culprits.
In the meantime, a spokesman for the Kabul police commandment, Hashmat Stanikzai, says Gen. Wardak has been stabbed to death and his driver has been arrested.
No individual or group has so far claimed responsibility behind the attack.
However, the anti-government armed militants have stepped up their attacks against the former and current government and security officials in the key provinces and cities of the country.
Several similar attacks including magnetic bombings have been carried out against the officials in Kabul city during the recent months.