A tornado raged through a city on the U.S.-Mexico border destroying homes, flinging cars like matchsticks and ripping an infant from its mother's arms. At least 13 people were killed, authorities said, according to Fox News.
A vacation home in Texas was swept away by rushing floodwaters which left at least 3 people dead and 12 people reported missing.
A baby was also missing after the twister that hit Ciudad Acuna, a city of 125,000 across from Del Rio, Texas, sent the infant's carrier flying.
Victor Zamora, interior secretary of the northern state of Coahuila, described the seven-block area hit by the twister as "devastated."
Around 300 people were being treated at local hospitals while up to 200 homes had been completely destroyed and three people were unaccounted for, said Mayor Evaristo Perez Rivera.
At least 13 people total were confirmed dead - 10 adults and three infants.
In the U.S., a line of storms that stretched from the Gulf of Mexico to the Great Lakes dumped record rainfall on parts of the Plains and Midwest, causing tornadoes and major flooding that forced at least 2,000 Texans from their homes, reported Yahoo News.
Daily Mail also reported that the storms were also the cause of five deaths on Saturday and Sunday, including two in Oklahoma and three in Texas. A man's body was recovered from a flooded area along the Blanco River. Meanwhile, bodies of a 14-year-old and his dog were pulled from a storm drain in suburban Dallas.
Texas Gov. Greg Abbott said the storms had "relentless tsunami-type power" and urged the communities downstream to monitor flood levels and take the threat seriously.
The governor also added 24 counties to his disaster declaration with a total of 37 counties wherein most are in the eastern half of the state.