Mandate of the Turkish government on transborder operations against Syria is appropriate response made by the country, U.S. State Department Spokesperson
Victoria Nuland said during a daily press briefing on Thursday.
"From our perspective the response that Turkey made was appropriate. It also was designed to strengthen the deterrent effect, so that these kinds of things don't happen again, and it was proportional," the State Department's official website quotes Nuland as saying.
She said the message is to the Syrian side, that it needs to stop.
On Thursday Turkish parliament approved issuing a mandate for cross-border military operations against Syria in response to the shelling of the Turkish city of Sanl?urfa by the Syrian army.
At least 5 people were killed in Sanl?urfa province on Wednesday, when a mortar exploded in the town center. According to Turkish electron media outlets, Syrian government army fired at the city.
In response to the shelling Turkey bombed the site in Syrian territory, from where the fire opened.
NATO and the UN demanded from Syria to immediately cease all acts of aggression against Turkey. Syrian authorities expressed their condolences to the families of the dead and began investigating the incident.
In mid-September, a few houses in Turkey have already suffered from Syrian shells. Three people were injured then.