title: U.S. envoy to Turkey says duration of visa services suspension depends on talks
text: ISTANBUL (Reuters) - The U.S. ambassador to Turkey said on Monday the duration of a suspension in visa services in Turkey would depend on talks between the two governments regarding the detention of Turkish staff at the U.S. embassy. In a written statement, Ambassador John Bass said the length of the suspension would also depend on  the Turkish government s commitment to protecting our facilities and personnel here in Turkey , noting it was not a visa ban on Turkish citizens. He said the embassy had been unable to learn the reasons for the arrest of a Turkish staff member last week and or what evidence exists against the employee. 