By Karen Lema and Mikhail Flores MANILA (Reuters) -Philippine prosecutors said on Wednesday there was no stopping the impeachment trial of Vice President Sara Duterte, expressing bemusement at why the Senate convened a court before swiftly returning the case to the lower house.

The planned trial of Philippine Vice President Sara Duterte is in doubt after the articles of impeachment were unexpectedly sent by senators back to the House of Representatives, whose prosecutors said they can’t — for now — comply with the request.

Philippine senators have set themselves as an impeachment court for the trial of Vice President Sara Duterte over corruption and other criminal allegations but they voted to send the raft of complaints back to the House of Representatives due to legal questions.