A high-ranking United Auto Workers official is facing felony charges of embezzlement and fraud, and prosecutors say that several top union officials conspired to steal more than $1.5 million from the union.

Prosecutors outlined the charges against Edward N. Robinson in a filing Thursday in federal district court in Detroit. Robinson is President of a UAW council in Missouri. According to the filing, Robinson and six other top UAW officials conspired since 2010 to embezzle funds through schemes such as submitting false vouchers for conference expenses.

Prosecutors said an official directed Robinson to divert more than $850,000 from a union organization and to cover up the theft by submitting fake expenses or receipts for expenses that had already been paid.

Officials say Robinson managed to get $500,000 to $700,000 in fraudulent or unauthorized checks, cashed them, and split the money with another official.