Sources say the SEALs were called in by Kenyan Special Forces in need of back-up during the attack in Nairobi.
Five Islamic Terrorists entered the luxury hotel armed with a grenade, guns and a bomb on Tuesday afternoon.
US Africa Command officials have neither confirmed nor denied the presence of SEALs during the attack
A British Special Air Service soldier was reportedly among those who provided backup
Among the 14 victims were an unnamed British man and 40-year-old California businessman Jason Spindler.
All five terrorists, believed to be of Somalian Islamist group al-Shabaab, died during attack or in aftermath.