Late mortgage payments increased in the second quarter, the Mortgage Bankers Association of America reports.

The increase in late payments was lower for conventional loans than for FHA and VA loans, according to the association's quarterly survey.

The overall late-payment rate for residential loans was 4.77 percent, up 12 basis points from the first quarter, according to the survey.

For conventional loans, the late-payment rate was 3.1 percent, up 6 basis points. For FHA loans, the rate was 11.81 percent, up 58 basis points, and for VA loans, 8 percent, up 19 basis points.

The delinquency rate for fixed-rate mortgages rose to 4.03 percent, up 11 basis points. For adjustable-rate mortgages, the late payment rate was 6.06 percent, up 34 basis points, according to the survey.

"The increase in delinquencies is due mainly to the increase in unemployment that occurred from the first quarter to the second quarter of this year," said Doug Duncan, the Mortgage Bankers Association of America's top economist. "In the first quarter, unemployment averaged 5.6 percent, but increased to an average of 5.9 percent in the second quarter."