Americans shouldn't travel to Yemen because of "terrorism, civil unrest, health risks, kidnapping, armed conflict, and landmines," the State Department said.
"A civil war continues in Yemen. In addition, terrorist groups continue to plot and conduct attacks in Yemen," according to the notice. "Military conflict has caused significant destruction of infrastructure, housing, medical facilities, schools, and power and water utilities."
The US government cannot assist American citizens in emergencies since the US Embassy in Sana'a suspended operations in 2015, according to the department.