Updated

Hundreds of activists and youth protesters in Yemen are marching to demand justice for an American teacher who was gunned down by unknown assailants this week.

Joel Shrum had been living in the central city of Taiz where he was learning Arabic and teaching English at a language institute.

Yemeni protesters on Tuesday carried photos of Shrum as they marched through the city's streets, chanting "Yemen is not a place for terrorism. We love you Joel!"

Activist Radwan al-Qadri says several lawyers and protesters met with the Taiz police chief to demand an investigation and the arrest of those behind the attack.

Shrum, a native of Harrisburg, Pennsylvania, moved to Yemen in 2009. He was killed Sunday.