Ecuador claims that Mexico's decision to hide Glas at the embassy in Quito "constituted, among other things, a blatant misuse of the premises of a diplomatic mission," The Hague-based court said in a statement on Monday.
"Ecuador further accuses Mexico of unlawfully granting Mr Glas political asylum and of interfering in its internal affairs," it added.
The Ecuadorean foreign ministry defended the armed raid on the embassy, claiming that the mission had no right to hide a criminal suspect at its premises. Glas has been convicted of corruption in Ecuador and faces new charges of misusing public funds.