(FOX NEWS) House Republicans plan to move their own proposal to raise the debt ceiling and fund the government, in response to a new plan emerging from the Senate side, Fox News has learned.

The decision throws into doubt what the next step will be in the tense budget negotiations. Senate Republican leaders plan to brief their members later Tuesday morning on the emerging Senate plan, but the House GOP is apparently now going in its own direction.

Stocks swiftly fell on the news that a separate House plan was taking shaping.

Note: Read our discussion guidelines before commenting.