Hundreds of rescuers, including teams from local, state and federal agencies, as well as volunteers, are involved in the search, Texas Game Warden Ben Baker said Tuesday during a news conference.

The floods that swept south central Texas last week have killed at least 120 people, with 160 still missing.

"So all across the country, Americans' hearts are shattered," Trump said. "We're filled with grief and devastation. It's the loss of life, and unfortunately, they're still looking."

President Donald Trump and first lady Melania Trump visited Texas to survey the damage from last week’s devastating floods.

As search teams continue to search for more than 160 people still missing, Mr Trump and his wife met families affected by the floods and first responders.