The younger siblings' detente with elder brother Prime Minister Lee Hsien Loong is likely to last "provided that we and our father's wish are not attacked or misrepresented".

Their statement also said that the recent Parliament session on July 3 and 4 raised more questions than answers, and included detailed replies to "some claims made" then, noting that they did not have the opportunity to present their views in Parliament.

The younger siblings appear to be reserving the presentation of evidence only when there is "a truly independent inquiry".

One part of the statement read:

"It is impossible for Members of Parliament to effectively question PM Lee, when his party controls almost all the seats in the house. No independent investigator has gathered evidence, interviewed other witnesses, or subpoenaed the government’s own records. As we pointed out before, Parliament is not the right forum for investigations of this nature."

"In Parliament, many spoke up to parrot Lee Hsien Loong’s attacks on Lee Kuan Yew’s will and on us. This entirely proves our point that Hsien Loong’s subordinates are beholden to him, and cannot be impartial judges of their own boss."

Here is the full statement:

Another document was posted on Facebook containing what the siblings claim are evidence on the issue: