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The Kovacevic family sits in front of their flood-damaged house in Topcic Polje

The Kovacevic family sits in front of their flood-damaged house in Topcic Polje, May 20, 2014. At least 40 people have died in Serbia, Bosnia and Croatia, after days of the heaviest rainfall since records began 120 years ago caused rivers to burst their banks and triggered hundreds of landslides. REUTERS/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: DISASTER ENVIRONMENT)

Floods devastate Serbia and Bosnia

Record-high floods and landslides have swept away people, homes and roads in the Balkans over the past week, but in Bosnia another deadly menace is hiding in the flood rubble: land mines.

Authorities have spent two decades trying to unearth the 1 million land mines planted during Bosnia's 1992-95 war. Before the floods, nearly 120,000 remained in 9,416 marked minefields.

Then floods washed away river banks and fueled landslides that have unearthed minefield warning signs and, in many cases, the unexploded booby traps themselves.

Rescue teams and humanitarian aid, water pumps and generators have arrived from Russia and several European Union member states, including Britain, Germany and Austria, as well as Serbia and Bosnia's fellow former ex-Yugoslav republic Montenegro, Croatia and Slovenia.