Police reports indicated that three security guards were found tied with ropes.
An Administration Police officer manning the area reportedly had his rifle forcefully taken away from him by the gang.
Nairobi police commander Rashid Yakub, stated that police officers responded in time to rescue the family.
They confirmed that no family member was injured during the incident, though the criminals carted away family valuables of unknown amount.
The gang escaped through the neighouring Karua forest, some having sustained gunshot wounds, according to police reports.
Nairobi police boss Yakub noted that the matter was under investigation.
He confirmed that the three security guards along with the AP officer had been taken in for questioning.
â€œWe are investigating the incident. We will know the truth in a short while,â€ Yakub said.
Such incidents are not common in the area where prominent businessmen such as Jimmy Wanjigi and the top political class such as former President Mwai Kibaki reside.
This is due to the 24-hour surveillance that attributes the area to be among the most guarded areas in Kenyaâ€™s capital.