Sogavare accused the opposition MPs Bodo Dettke and Mathew Wale of trying to bribe the tourism minister, Bartholomew Parapolo, soon after the death of his wife on Tuesday.
He says the MPs met Parapolo at the hospital while he was grieving with other relatives.
Sogavare accused the two MPs of trying being more interested in their effort to destabilise his government than paying attention to Parapolo's state of grief.