Gian Pietro Milano, whose official title is Promoter of Justice, made the disclosure during his annual address on the state of the Vatican's criminal justice system.
Milano gave no details in his speech but added that the total amount of suspect money frozen between 2013 and 2016 was about 13 million euros.
The money was frozen following alerts from the Vatican Financial Intelligence Authority (AIF), which Francis has given more operative power.
Milano did not say how much of the money was later unblocked following investigations but that in 2016 two cases led to indictments and three were shelved.
The Vatican, a sovereign state surrounded by Rome, has enacted a number of provisions to cleanse its finances and make them more transparent in recent years, particularly since Francis' election in 2013.
Moneyval, the financial monitoring body of the Council of Europe, said in its latest review in December 2015 that the Vatican had made great strides in cleaning up its scandal-plagued bank and other financial departments.
The watchdog, which evaluates how a country's financial legislation and practices comply with international standards, said the Vatican had addressed many previous deficiencies.
But it said the Vatican should be much more aggressive with prosecutions and indictments.
In late 2015, an investigation was opened after an internal report said a department of the Holy See that oversees real estate and investments was used in the past for possible money laundering, insider trading and market manipulation.
In 2014, Milano froze millions of euros in bank accounts owned by two former Vatican bank managers and a lawyer as part of an investigation into the sale of Vatican-owned real estate.
There have been no indictments on those cases so far.
In his speech on Saturday, Milano said the Vatican had "closed the gap" to meet international standards regarding monitoring, reporting, investigating and prosecutions.
He said 17 investigations of suspected financial crimes were still underway.
Investigative cooperation from other countries, particularly Italy, had improved but that there were still many bureaucratic delays, he said.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
)