Local Afghan officials suspect the Taliban is after the city prison, to free militants aligned with the group.
"If there is no significant air support and ground reinforcement, Tarin Kot will collapse," warned Abdul Karim, provincial capital head.
The US Department of Defense announced on September 6 that 1,400 troops would be sent to Afghanistan for an undisclosed period. According to DoD statements, this is part of a regular troop rotation and that the overall number of US troops in Afghanistan will not be increased. US troops in Afghanistan are, according to official statements, conducting an anti-terrorism operation against al-Qaeda and Daesh forces.
Earlier in August the US DoD confirmed that about 100 troops were sent to the city of Lashkar Gah, the capital of Helmand province, but insisted that they will provide advisory and training and will have no combat role.