Estonia, Finland say Russia entered airspace before U.S. defence pact
Reuters World News
Tuomas Forsell, Jussi Rosendahl

Reuters reported the violation of Finnish airspace by Russian SU-27 fighters on Friday, October 7, with comments by Senior Research Fellow Charly Salonius-Pasternak.
http://uk.reuters.com/article/uk-finland-russia-idUKKCN1270HT