Poland has launched a major security operation along its border with Russia, sending extra security forces to the frontier in a rapid deployment, according to a CBS News report on the border operation. The outlet said Poland's prime minister believes the deployment may have prevented "attempted acts of provocation."

The New York Times also reported on the border operation in a story by Andrew Higgins. It said Prime Minister Donald Tusk described "disturbing movement" in Kaliningrad, a Russian region just north of Poland, and reported the increase in security alongside his remarks about that activity.

The two accounts differ in emphasis. CBS News focuses on the deployment and its possible effect on provocations, while The New York Times focuses on the movement Tusk described in Kaliningrad. Neither summary says what that movement involved, and neither identifies who was involved.

The summaries also do not give the number of forces deployed, the precise locations along the border, or when the operation began, beyond describing the deployment as rapid. The CBS News item carries no byline in the material reviewed.

Kaliningrad, the Russian region that The New York Times describes as lying just north of Poland, is at the center of Tusk's remarks, according to that report. The summaries do not say whether Russian authorities have responded to the Polish operation.

Sources: CBS News: Poland launches major security operation along border with Russia; The New York Times: Poland Beefs Up Security at Border With Russia.