<prompt> tafsiri zifuatazo kutoka kwa swahili hadi kiingereza.pia walielezea wasiwasi wao kwamba uchunguzi kuhusu kesi za utapeli wa pesa na rushwa haujaendelea, haswa kuhusu keith schembri, mkuu wa zamani wa wafanyikazi wa waziri mkuu muscat, na konrad mizzi, waziri wa zamani wa utalii.  <response>: they also expressed their worry that the investigations into related money laundering and corruption cases have not advanced, especially with regard to keith schembri, the former chief of staff of prime minister muscat, and konrad mizzi, the former tourism minister. 