Senators have threatened to suspend dealing with Bills forwarded to them by the National Assembly.

The senators also vowed to frustrate government business in the House.

The threat comes after the National Assembly rejected Senate's attempt to control a Sh1 billion county oversight fund.

The lawmakers yesterday said they will not relent in their quest for the oversight kitty, even as they accused President Uhuru Kenyatta's administration of not supporting their push to control the fund.

The House vowed to convene a Kamukunji on Tuesday next week to ratify the decision to frustrate further government business and play hard-ball with the National Assembly until the issue is resolved.

The decision was communicated by Majority Leader Kithure Kindiki, who said the House was united in the fight for the kitty.

Members of the National Assembly frustrated the last efforts by Senate to access the fund last week after they rejected regulations allowing senators to govern the kitty on grounds that they were against the Public Finance Management Act.

But yesterday, senators dismissed the claim that the regulations were illegal, claiming that the rejection was part of a long supremacy battle with the National Assembly.

"What the MPs did was a criminal act. It is a subversion of the law and borders on juvenile delinquency," said Kindiki.

"We are not going to entertain any business from the National Assembly or the Executive until this money is released to us. We will suspend all business and on this we will not introduce coalition division and politics," said the Tharaka Nithi Senator.

Minority Leader Moses Wetang'ula accused the Executive of not being keen on the Senate being granted the oversight fund, saying if the President wanted to empower the house to undertake its work, he would rally his MPs to ensure the regulations are passed.

"It is apparent that the Executive in this country does not want this House, and we all know that killing senate means killing devolution," said Wetang'ula.

The senators said that the pilferage in counties currently being witnessed would be placed under check if the senators were facilitated in their oversight duties.

"As long as these governors are not being monitored then this pilferage will continue," said Mombasa Senator Hassan Omar.

Deputy Speaker Kembi Gitura also dismissed claims by the National Assembly that the regulations were legally wanting.