President Trump is reacting to the horrific massacre of at least nine American mothers and their children in Mexico yesterday by calling for a war on drug cartels in the country. He's also waiting for a phone call from the Mexican president to explain what happened and to do something about it.

A wonderful family and friends from Utah got caught between two vicious drug cartels, who were shooting at each other, with the result being many great American people killed, including young children, and some missing. If Mexico needs or requests help in cleaning out these..... — Donald J. Trump (@realDonaldTrump) November 5, 2019

....monsters, the United States stands ready, willing & able to get involved and do the job quickly and effectively. The great new President of Mexico has made this a big issue, but the cartels have become so large and powerful that you sometimes need an army to defeat an army! — Donald J. Trump (@realDonaldTrump) November 5, 2019

This is the time for Mexico, with the help of the United States, to wage WAR on the drug cartels and wipe them off the face of the earth. We merely await a call from your great new president! — Donald J. Trump (@realDonaldTrump) November 5, 2019

Yesterday Rhonita Maria LeBaron, Christina Langford Johnson and Dawna Langford, along with six of their small children - including twin babies - were driving north in Sonora to the United States for a family wedding. The vehicle driven by LeBaron was riddled with bullets and found burned on the side of the road. Johnson, Langford and her children were killed in a separate attack up the road. They were in separate vehicles and driving as a caravan.

Asi se vive en el Gobierno de @lopezobrador_ Mormones Mexicanos, mujeres y niños inocentes emboscados en la Sierra de Chihuahua son acribillados y quemados vivos por los Carteles que mandan en Mexico! @Javier_Corral @revistaproceso @CarlosLoret @CiroGomezL pic.twitter.com/uQNJYbeO73 — LeBaron (@AlexLebaron1) November 4, 2019

The Mexican Embassy in Washington D.C. has issued a statement and has been in contact with the U.S. government about the incident.

"I share that on instructions from President Lopez Obrador we have been communicating since yesterday with United States Ambassador Chris Landau and his team regarding the tragedy that occurred in the limits of the states of Sonora and Chihuahua," Mexican Secretary of Exterior Relations Marcelo Ebrard tweeted in a statement Tuesday morning.

Les comparto que por instrucciones del Presidente Lopez Obrador estamos en comunicación desde ayer con el Embajador de los Estados Unidos Chris Landau y su equipo respecto a la tragedia ocurrida en los limites de los estados de Sonora y Chihuahua. — Marcelo Ebrard C. (@m_ebrard) November 5, 2019

Meanwhile, the State Department is also investigating.