Donald Trump accused of 'copy and paste' condolence after tweeting about wrong mass shooting

Donald Trump has been accused of copying and pasting his condolence Twitter messages to the victims of mass shootings after posting about the wrong massacre.

The President tweeted on Tuesday evening: "May God be with the people of Sutherland Springs, Texas. The FBI and Law Enforcement has arrived."

However, this tweet appears to refer to the church shooting which occurred last week — as news broke that multiple people were shot in California as a gunman opened fire on multiple locations, including a school.

It was also nearly word-for-word the same as the tweet he had posted about the Sutherland Springs shooting shortly after it happened.

Television presenter Piers Morgan tweeted: "At least get your mass shootings right, Mr President. This was last week. The new one is in California."

Another Twitter user wrote: "He's mixed up mass shootings, confusing the one last week in Texas with the one in California today. This is so disrespectful to the victims."

 The tweet was still up some hours after he posted it.

Four people were killed in California on Wednesday after a shooter carried out an attack on the rural community of Rancho Tehama, about 200km from Sacramento.

Police shot and killed the gunman, and believe the rampage began as a "domestic violence" incident.

Seven people, including some children, are being treated for gunshot wounds.

At least one child was wounded at the school. Another child was shot while driving with a woman, who also was wounded, Tehama County assistant sheriff Phil Johnston said.

Police didn't have a firm count of the wounded late last night because of how many different locations the gunman attacked before being shot dead.