The U.S. Capitol stands in Washington, DC, U.S. January 31, 2018. REUTERS/Joshua Roberts

WASHINGTON (Reuters) - The U.S. House of Representatives plans to vote on Tuesday on legislation to keep federal agencies operating beyond Feb. 8, when existing funds expire, a senior House Republican aide said on Friday.

The aide did not provide details, however, on the duration of this latest-in-a-series of temporary funding measures. Congressional negotiators are fighting over defense and non-defense spending levels for the fiscal year that ends on Sept. 30, as well as other unrelated matters.