By Michael Miller / People
December 4, 2015

Amy Schumer is using her considerable social media clout to rally her fans against gun violence on the day after the mass shooting in San Bernardino.

The actress and comedian took to Twitter on Thursday, urging her roughly 2.7 million followers to appeal to their senators for stricter gun control.

“Text ‘enough’ to 877-877 for the public to tell congress directly that we want background checks on ALL gun sales,” she posted. “Do it now! I did!”

The number Schumer provided was set up by the Brady Campaign to Prevent Gun Violence and allows callers to be connected directly to their respective senator based on the users area code.

Dialing the service’s hotline number, 1-888-997-4866, connects callers to their state’s second senator. By Thursday afternoon, the organization said it had received over 6,000 calls since last night, according to the NY Daily News.

Schumer also tweeted, “U.S. Senate vote today on gun violence. Will your senators stop dangerous people from getting guns? Ask them: http://tinyurl.com/qeww2dn.

The link provided directs to a list of email addresses and telephone numbers to all the members of the 114th Congress.

Hours after attack on Wednesday, in which two shooters opened fire on a room full of San Bernardino County employees at a holiday party, killing 14 and wounding 21, Schumer tweeted: “This is absolutely heartbreaking-all my love to everyone in San Bernardino especially the first responders,” the actress wrote. “These shootings must stop.”

The shooters – identified as a married couple, Syed Rizwan Farook, 28, and Tashfeen Malik, 27 – were killed later on Wednesday after a shootout with police.

The comedian has been especially vocal about gun violence since a shooter opened fire at a Louisiana screening of her film Trainwreck in July in which two women were killed.

She’s made multiple public appearances with her cousin, Sen. Chuck Schumer, in an effort to bring awareness to the subject. “Gun violence is ripping apart America; it’s ripping apart our families,” she said at an October press conference with Sen. Schumer. “And even those untouched by violence must every few days just look up in a stunned silence at another nightly newscast that reads like an obituary.”

This article originally appeared on People.com

Contact us at editors@time.com.

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