The Golan Heights area, where some 20 UN personnel have reportedly been detained, is regularly patrolled by UN peacekeepers.
Israel captured the Golan Heights from Syria in 1967 and the two countries are still technically at war.
Syrian troops are not allowed in the area of separation under a 1973 ceasefire formalised in 1974.
More top news
The Bond star paid tribute to Christina Knudsen after her death from cancer aged 47.
Thirteen years later, it's time to reunite with Adam, Pete, Jenny, Karen and David. Here is the first glimpse of the stars back in action.
Former leading amateur jockey JT McNamara has died aged 41