Facebook said on Wednesday it is working to resolve issues faced by some users while sending media files on its social media platforms including WhatsApp and Instagram.

More than 14,000 users reported issues with Instagram, while more than 7,500 and 1,600 users reported issues with Facebook and WhatsApp, according here to outage tracking website Downdetector.com.

According to the website, the issues are located in parts of Europe and the United States.

Update: Facebook said on Wednesday an issue with uploading or sending media files on its apps and platforms has been resolved.

“During one of our routine maintenance operations, we triggered an issue that is making it difficult for some people to upload or send photos and videos,” Facebook had said.

Facebook declined to comment when asked whether it will refund businesses. In a similar incident in March, the company said it would consider refunding advertisers for lost exposure.