A new update to image-focused social media network Instagram allows users to block "inappropriate comments" with a feature that is being referred to as a "keyword moderation tool."

Users can also already swipe to report and delete comments and can block accounts.

Systrom said that he is committed to "(working) towards keeping Instagram a safe place for self-expression" and to "keep building features that safeguard the community and maintain what makes Instagram a positive and creative place for everyone."