A Palestinian refugee is in custody for allegedly stabbing eight people, including four foreign tourists, at the Jerash archeological site in northern Jordan.
Three Mexicans and a Swiss tourist are among the wounded, along with two Jordanian security officers and a tour guide.
Jordanian officials say the Westerners are being treated at a hospital, describing their wounds as serious but not life threatening.
Foreign Minister Ayman Safadi spoke by telephone with his Mexican and Swiss counterparts and assured them their citizens are getting the care they need.
Police and witnesses say the suspect came out of nowhere and began stabbing people before other tourists and their guides subdued him.
The suspect came from the Palestinian refugee camp in Souf. Police and his family both say they believe he acted alone.
The suspect's uncle says his nephew went from being a so-called normal young man to an extremist, but gave no sign that he was prepared to act out violently.
"If we knew he was going to do this, we would have broken his legs," the uncle said.