Punishment For Sins Committed Under Violation Of Sadd-e-Zaria Prohibitions
Yes, minor sins. However, a conscious Muslims never violates any commandment of Allah intentionally, whether a Sadd-e-Zariya requirement or otherwise. But if such a mishap happens for a Sadd-e-Zariya requirement, then it will result in a minor sin.
Please see this discussion : Discussion insisting-on-minor-sin/