The Foreign and Commonwealth Office (FCO) of Great Britain advise against all travel to Azerbaijan's Nagorno-Karabakh region and the military occupied area surrounding it, a message posted on the website of UK government said on Aug.7.
"There have been ceasefire violations along the Armenia-Azerbaijan border and line of contact which resulted in a number of deaths and casualties," the statement said.
Anyone who has visited Nagorno-Karabakh without the permission of the Azerbaijani authorities will be refused entry to Azerbaijan, according to the FCO.
"All British nationals traveling to Azerbaijan must obtain a visa in advance," the Foreign and Commonwealth Office said.
During the recent days, Azerbaijani positions have been constantly under attack, and 13 servicemen have been killed, several more were wounded. Armenian side suffered more losses while trying to hide this fact from the public.
The conflict between the two South Caucasus countries began in 1988 when Armenia made territorial claims against Azerbaijan. As a result of the ensuing war, in 1992 Armenian armed forces occupied 20 percent of Azerbaijan, including the Nagorno-Karabakh region and seven surrounding districts.
The two countries signed a ceasefire agreement in 1994. The co-chairs of the OSCE Minsk Group, Russia, France and the U.S. are currently holding peace negotiations.
Armenia has not yet implemented the U.N. Security Council's four resolutions on the liberation of the Nagorno-Karabakh and the surrounding regions.