Public support for Prime Minister Shinzo Abe's Cabinet has dropped 5.4 points to 37.0 percent on fresh revelations that have deepened cronyism and cover-up suspicions related to him, a poll showed Sunday.

The Cabinet's disapproval rate stood at 52.6 percent, up from 47.5 percent in the previous Kyodo News survey two weeks ago.

The 37.0 percent approval rate is the second lowest poll result since Abe commenced his second stint as prime minister in 2012. The figure fell below 40 percent for the first time since a similar survey was carried out in mid-March.