The criminal trial of three former Dewey & LeBoeuf executives on fraud charges has ended in a mistrial after four months of court proceedings and a second trial may have to be run.

The trio - former firmwide chairman Steven Davis, former executive director Stephen DiCarmine and former chief financial officer Joel Sanders - were each charged with conspiracy, scheme to defraud, securities fraud under New York's Martin Act, 15 charges of grand larceny and over 30 charges of falsifying business records.

All the charges related to the 2012 collapse of Dewey, which remains the largest ever law firm collapse in history.

The men had faced as long as 25 years in prison if convicted of the most serious charge of grand larceny.

However, a mistrial was declared yesterday after the jury failed to reach a verdict on more than 90 counts.

Cyrus Vance, the Manhattan district attorney bringing the prosecution, issued a statement that said his office would undertake a "thorough review of the case".

It said: "We continue to believe in the strength of the evidence and that the defendants' actions broke state law."

Earlier this month they were cleared of some of the criminal charges brought against them, in two partial verdicts that came over a year after the criminal fraud charges were first levelled against them.

Bringing the charges in March 2014 Vance said management had hidden the firm's true financial condition from creditors, investors, auditors and partners.

The criminal trial of three former Dewey & LeBoeuf executives on fraud charges has ended in a mistrial after four months of court proceedings and a second trial may have to be run.

The trio - former firmwide chairman Steven Davis, former executive director Stephen DiCarmine and former chief financial officer Joel Sanders - were each charged with conspiracy, scheme to defraud, securities fraud under New York's Martin Act, 15 charges of grand larceny and over 30 charges of falsifying business records.

All the charges related to the 2012 collapse of Dewey, which remains the largest ever law firm collapse in history.

The men had faced as long as 25 years in prison if convicted of the most serious charge of grand larceny.

However, a mistrial was declared yesterday after the jury failed to reach a verdict on more than 90 counts.

Cyrus Vance, the Manhattan district attorney bringing the prosecution, issued a statement that said his office would undertake a "thorough review of the case".

It said: "We continue to believe in the strength of the evidence and that the defendants' actions broke state law."

Earlier this month they were cleared of some of the criminal charges brought against them, in two partial verdicts that came over a year after the criminal fraud charges were first levelled against them.

Bringing the charges in March 2014 Vance said management had hidden the firm's true financial condition from creditors, investors, auditors and partners.