US President Barack Obama has spoken with German Chancellor Angela Merkel to offer condolences and US help after a truck crashed into a Berlin Christmas market, killing 12 and wounding dozens, the White House says.
Obama offered condolences for the "horrific apparent terrorist attack", it said in a statement on Tuesday.
"The president reiterated the US offer of assistance and underscored that no attack could sway our determination - and that of our German allies - to defeat terrorism in all of its forms," the statement said.
