Suicide bombers stormed a United Nations guest house early Wednesday killing 10 people, including six U.N. staff members.
The Taliban is claiming responsibility for the deadly attack that occurred at the United Nations guest house and a serious of attacks that followed.
A Taliban spokesperson is calling it a warning in advance of the Afghan presidential election.
Meanwhile, United Nations leaders are busy Wednesday morning notifying family members of the tragedy and working to get treatment for those who survived attack, but suffered serious injury.
"This morning we have had a very serious attack on us in Kabul," said U.N. spokesman Adrian Edwards. "Our guest house here in the city was invaded by around a half dozen people, gunfire broke out. It seems to have been a subsequent fire in the guest house."
Edwards condemned the attack, calling it senseless.
"This is a very serious incident, it's also tragic," he said. "These are civilians working for Afghanistan. This is a totally senseless thing that has happened here. It's an outrage and it's a tragedy."
A rocket also struck the "outer limit" of the presidential palace in Afghanistan, but no one was killed. Another slammed into the grounds of a luxury hotel, but failed to explode.
Deadliest Month on Record
The attacks come after a deadly day in southern Afghanistan on Tuesday when eight American soldiers were killed.
The troops all belonged to the 5-2 Stryker Brigade out of Fort Lewis, Washington.
October is now the deadliest month on record for American soldiers since the start of the war.
The losses come at an extremely sensitive time for Washington, as president still considers sending more troops.
"Every day that goes by without that decision being made, the more days there are where young Americans are unnecessarily in harm's way in my view," said Sen. John McCain, R-Ariz.
Foreign Service officer and former Marine Capt. Matthew Hoh became the first U.S. official to resign in protest against the war.
"I believe that the people we are fighting there are fighting us because we are occupying them - not for any ideological reasons," Hoh said.
"And because of any links to al Qaeda, not because of an fundamental hatred toward the West," he added. "The only reason why they are fighting us is because we are occupying them."
The Taliban is warning more attacks will come in opposition to the upcoming presidential election on Nov. 7.