Fifty-two migrants have forced their way into Spain's North African exclave from Morocco by scaling the border fence. The territory has become a regular flashpoint for African migrants in recent years.
Around a hundred migrants on Sunday tried to climb the fence that separates Morocco from the Spanish exclave of Melilla.
Spain's Interior Ministry said 52 of the migrants from sub-Saharan African countries managed to get across the 6-meter (19.6 ft) high structure.
The migrants tried to storm the barbed wire fence at dawn, but Spanish and Moroccan security forces prevented "around half" from entering Melilla.
Several injuries reported
Four Spanish border police officers and one migrant were injured in the incident.
Police arrested one of the migrants for assaulting an officer.
The others were taken to a temporary migrant accommodation center where they were given new clothes.
Video images published by local newspaper El Faro de Melilla showed sweaters and jackets stuck to the razor wire that tops the border fence, left behind by the migrants.
Sunday's incident was the largest migrant storm since last October when some 300 migrants scaled the fence.
. About 200 migrants managed to get into the exclave, and one died of a suspected heart attack in the attempt.
EU territory in Africa
Spain has two exclaves on the north coast of Africa: Ceuta, located at the Strait of Gibraltar; and Melilla, 250 kilometers (155 miles) further east on the Mediterranean coast.
Near these two territories, tens of thousands of migrants from African countries are waiting for a chance to enter the EU's only land borders with Africa.
Melilla and Ceuta are often used as entry points into Europe for African migrants, who either climb over their border fences or try to swim along the coast.
Spain became the leading entry point to Europe last year, with some 60,000 migrants arriving irregularly, almost all of them by crossing the Mediterranean in small boats.
mm/ng (AFP, dpa)