Is Facebook planning to #hash it out like Twitter?

Facebook is planning to introduce the hashtag, rival Twitter's iconic marker, into its service by using the symbol as a way to group conversations, the Wall Street Journal reports.

According to the newspaper, sources said it is unclear how far along Facebook's work on the hashtag is and it is not expected to be introduced in the near future.

Could Facebook be planning to launch a hashtag service? Credit: Press Association

On Twitter, a hashtag put in front of a word allows people to collate messages about a news event or topic.

Hashtags are already incorporated into Instagram photo-sharing service which is owned by Facebook.