With the incidents coming a day after 10 people were shot dead at a grocery store in New York state in an alleged hate crime.

One was dead when a gunman opened fire at a church near Los Angeles during a banquet following morning service, officials said. Four others were in a critical condition, they told a press conference.

The gunman, believed to be an Asian adult male in his 60s, was subsequently detained by the churchgoers and his legs were hogtied with an extension cord, they said according to news agency AFP. At least two weapons were confiscated from him.

Local reports cited authorities as saying that the victims were mostly Asian and of Taiwanese descent.

Meanwhile, in Texas, Harris County Sheriff's Office said multiple people were shot at a flea market and two of them were confirmed dead on the spot.