STAMFORD, Conn. (AP) - The estranged husband of a missing Connecticut mother of five has posted $500,000 bail in a criminal case related to her disappearance.

Fotis Dulos was still in an orange prison uniform and declined to answer questions as he left the state courthouse in Stamford shortly before 4 p.m. Tuesday.

Dulos and his girlfriend, Michelle Troconis, pleaded not guilty earlier in the day to evidence tampering and hindering prosecution charges connected to the May 24 disappearance of Jennifer Dulos, who remains missing.

The estranged couple is involved in a bitter divorce and child custody case. Jennifer Dulos' mother is caring for the children and seeking custody.

Fotis Dulos declined to answer questions during a family court hearing Tuesday afternoon, citing his Fifth Amendment right against self-incrimination.