President Barack Obama says that it’s possible yesterday’s attack in California, where two people killed 14 and injured 17 others, was terrorist related. But he’s also holding out the possibility it was workplace violence.

“It is possible that this is terrorist-related, but we don’t know; it is also possible this was workplace-related,” Obama said, adding, “we don’t know why they did it.”

Obama added that it was important to understand the “nature of the workplace relationship” between the individuals to fully understand the attacks, raising the possibility that it could be “mixed motives” for the attacks.

The attacks were carried out at a facility for developmentally disabled adults by Syed Rezwan Farook, 28, and Tashfeen Malik, 27, a husband-and-wife team in California who were both heavily armed.

Obama made his remarks in the Oval Office this morning after a meeting with his national security team.

The president’s remarks show he still hasn’t changed his tone since he first reacted to the event as a another mass shooting in the United States.

During his Oval Office statement, he continued to call for more work from all Americans to work for gun control.

He called for all American lawmakers to make it “harder for individuals to get access to weapons” when they wanted to inflict pain on innocent civilians.

Obama appeared somber during his statement, reminding Americans that it was important to pray for the victims.

“Our first order of business is to send our thoughts and prayers to the families of those who have been killed and to pray for a speedy recovery for those who were injured during this terrible attack,” he said.

After his speech, Obama issued an order for American flags to be flown at half staff “as a mark of respect for the victims of gun violence” in San Bernardino.