California shooting: US celebrities react

There were 14 people killed and 17 injured in the shootings, which took place at a disability centre in the Californian city.

Celebrities have reacted to the shootings in San Bernardino by sharing heartfelt and angry messages on social media.

American singer Lady Gaga wrote to her 52.8 million followers on Twitter: "Thinking of the world today, praying the media doesn't reward killers with notoriety. Inspire peace. Use your power for harmony, not ratings..."

Thinking of the world today, praying the media doesn't reward killers with notoriety. Inspire peace. Use your power for harmony, not ratings

— Lady Gaga (@ladygaga) December 2, 2015

There were 14 people killed and 17 injured in the shootings, which took place at a disability centre in the Californian city.

Cuban American singer Gloria Estefan wrote messages in both English and Spanish on Twitter.

"Sending love & imagining a warm golden light embracing our world. Enviando amor e imaginando una luz brillante y calidad abrazando al mundo."

Sending love & imagining a warm golden light embracing our world. Enviando amor e imaginando una luz brillante y calidad abrazando al mundo.

— Gloria Estefan (@GloriaEstefan) December 2, 2015

Comedian and actress Amy Schumer wrote: "This is absolutely heartbreaking-all my love to everyone in San Bernardino especially the first responders. These shootings must stop."

This is absolutely heartbreaking-all my love to everyone in San Bernardino especially the first responders. These shootings must stop.

— Amy Schumer (@amyschumer) December 2, 2015

She then tweeted her 2.68 million followers saying "it doesn't have to be this way. join the movement and help us #endgunviolence..."

it doesn't have to be this way. join the movement and help us #endgunviolence -> https://t.co/SFuib5f6JW

— Amy Schumer (@amyschumer) December 2, 2015

Another American actress, Christina Applegate, said: "Wow. Once again heart is breaking. This has to stop!!!"

Wow. Once again heart is breaking. This has to stop!!!

— christina applegate (@1capplegate) December 2, 2015

Meanwhile, documentary film maker Michael Moore tweeted: "We interrupt "Dr. Phil" for Today's Mass Shooting Melee in the USA. #regularlyscheduledprogram..."

We interrupt "Dr. Phil" for Today's Mass Shooting Melee in the USA. #regularlyscheduledprogram

— Michael Moore (@MMFlint) December 2, 2015

Moore's 2002 documentary Bowling for Columbine looked at the shooting massacre at Columbine High School in 1999.

The Oscar-winning film also covered the issues surrounding gun ownership and gun violence in the US.