Sundar Pichai, chief executive officer of Google Inc., speaks during the Google I/O Developers Conference in Mountain View, California, U.S., on Tuesday, May 8, 2018.

Google has deleted 58 accounts with ties to Iran from YouTube and other sites, the company said in a blog post, broadening the scope of state-sponsored misinformation campaigns that have been detected and removed from major social networks.

The company "identified and terminated" 39 English-language YouTube accounts, 13 Google+ accounts and six Blogger blogs that were found to be engaged in "politically motivated phishing," Kent Walker, vice president for global affairs, said in the blog post.

The accounts were found to have ties to the Islamic Republic of Iran Broadcasting (IRIB).

"In recent months, we've detected and blocked attempts by state-sponsored actors in various countries to target political campaigns, journalists, activists, and academics located around the world," he said.

The update follows similar take-downs by Facebook and Twitter, which earlier this week revealed calculated misinformation campaigns by Russian and Iranian accounts. Major tech firms have been ramping up content reviews and increasingly removing bad actors in light of widespread election meddling and abuse of social platforms.

Facebook said last month it had discovered coordinated "inauthentic behavior" surrounding the midterm elections in November.

The Iranian interference on Google began as early as January 2017, Walker said, and "was carried out as part of the overall operations of the IRIB organization."

Here's Google's statement: