The State Department failed to reach the court-mandated goal to release 15 percent of former Secretary of State Hillary Clinton's 55,000 emails Friday, instead releasing 2,206 pages or 12 percent of her emails.

Intense scrutiny from U.S. intelligence agencies slowed the process, according to State Department deputy spokesman Mark Toner, which led to the shortfall.

The government censored 64 sections in 37 of Clinton's just-released emails. Toner said the material was deemed sensitive after the fact, saying "portions" of the emails "were updated to confidential."

Those emails "should never have been transmitted via an unclassified personal system," State Department inspector general, Steve A. Linick, said in a statement last week. In a letter to congressional committee leaders, Inspector General I. Charles McCullough III said a sample of 40 emails from Clinton's private server "revealed four contained classified IC information that should have been marked and handled at the secret level."

Toner admitted Friday that the intelligence community "has always been involved" in the review of Clinton's emails and refused to elaborate on whether these emails contained more classified information than previous batches. He also would not weigh in on whether the State Department had a double standard in its handling of investigations and whether it should have secured Clinton's email server.