Trump's border wall prototypes completed

Prototypes for US President Donald Trump's proposed border wall with Mexico have been completed and will be subjected to punishment to test their mettle - by workers wielding sledgehammers, torches, pickaxes and battery-operated tools.

The testing, lasting up to two months, could lead to officials concluding that elements of several designs should be merged to create effective walls, said Ronald Vitiello, US Customs and Border Protection's acting deputy commissioner.