A Republican congressman slammed Meta on Thursday over what the lawmaker called an inadequate response to concerns about illicit drug advertisements on Facebook and Instagram. "Meta's response not only ignores most of the questions posed in our letter, but also refuses to acknowledge that these illicit drug ads were approved and monetized by Meta and allowed to run on their platforms," Walberg said in a statement. In its letter to lawmakers, Meta Vice President of Global Legal Strategy Rachel Lieber said that the company shares lawmakers' concerns "about the public safety and health threat caused by the opioid epidemic." Meta is "profiting from proving paid amplification to drug trafficking sites that would not have the reach without Meta's advertising platforms." Read Meta's letter to lawmakers below:

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Persons: Mark Zuckerberg, Emily Chang, Tim Walberg, Meta, Walberg, Rachel Lieber, Lieber, Katie Paul, Paul, Zuckerberg, Read Organizations: Meta, Inc, Republican, Facebook, . Michigan, Wall Street Journal, Tech Transparency, Global, CNBC Locations: Menlo Park , California, San Francisco