The terror group is not believed to have a significant presence in the DRC and officials say it is believed that the operatives may have been planning to enter the DRC from outside the country.
The embassy had been closed since it received “credible and specific information of a possible terrorist threat against US Government facilities in Kinshasa” on November 24.
The embassy is expected to re-open to the public on Tuesday, according to a statement by the embassy.
Cutting US troops
The 11-day closure comes ahead of the December 23 elections in the Congo, which the US embassy had warned could bring potential unrest on short notice.
CORRECTION: This story has been updated to correct the amount of time the US embassy has been closed.