Turkish Foreign Ministry official in Ankara said the two abducted engineers were Gokhan Gul and Erhan Gunduz who were both working for the Turkish construction company Gulsen Insaat.
Islam Qala is on the main border crossing with Iran.
Neither the Taliban nor any other armed group claimed responsibility for the latest abduction.
Ousted from power in 2001, Taliban insurgents have been behind a number of kidnappings in Afghanistan. Some of the kidnap victims were killed, but most of have been released unharmed.
The insurgents kidnapped 23 South Koreans last year, killing two and releasing the rest a more than a month later.
Last Mod: 16 Temmuz 2008, 11:30