Vietnamese Sukhoi fighter jets collide during training

Vietnam conducts regular military training exercises along its lengthy coastline.

The People’s Army of Vietnam uses the Russian-made fighter jets for patrols over the portion of the contested Spratly Islands that Vietnam controls.

The country is currently locked in a long-standing territorial dispute with neighbouring China over a number of islands in the South China Sea, which Hanoi calls the “East Sea”.

Both countries claim the Paracel and Spratly Islands and often trade diplomatic barbs over oil exploration and fishing rights in the contested waters.

Tensions came to a head when Beijing moved an oil rig into waters claimed by Hanoi last year, triggering deadly anti-China riots in Vietnam.

China controls the Paracel Islands, after seizing them from what was then South Vietnam in a brief battle in 1974.

The Spratly Islands are also claimed in whole or in part by the Philippines, Malaysia, Brunei and Ta