A U.S. citizen working as a teacher in the eastern Libyan city of Benghazi was fatally shot Thursday, a source at Al Yala hospital told Efe.

The 33-year-old Texas man taught chemistry at the city's International School, which is attended by Libyans as well as the children of foreigners living in Benghazi.

Ronnie Smith was accosted and shot by unknown assailants while out for his customary morning jog in the city's Al-Fwihet neighborhood, according to Ibrahim al-Sharaa, a spokesman for Libyan security forces.

Two government soldiers and an intelligence official were also killed Thursday in Benghazi, the spokesman said.

The eastern city has witnessed more than a hundred politically motivated slayings since the fall of the Gadhafi regime in October 2011.

Victims have included current and former members of the security forces, journalists, attorneys and political activists.

The Libyan army declared a state of alert in Benghazi at the end of last month after a dozen people died and around 50 others were wounded in a clash between security forces and Islamist militias. EFE