Pope Francis is asking people to join him in prayer for the families of the Oklahoma tornado tragedy. 

The Pope tweeted:

 

Neighborhoods in the Oklahoma City suburbs of Moore and Newcastle have been turned to rubble after yesterday's twister.   The Oklahoma Medical Examiner is confirming at least 91 people died, and the death toll could rise.

Yesterday afternoon's storm killed at least 20 children as it wiped out two elementary schools. KFOR in Oklahoma reports 51 deaths, and 40 more presumed dead.