"I'm not aware of a direct link, but obviously both mediations are hugely overlapping when you are talking about the same parties, for the most part, that are taking part," foreign ministry spokesman Majed al-Ansari told reporters.

Cross-border violence between Israel and Hezbollah has intensified in recent days after repeated failures to reach a truce in Gaza.

Months of behind-the-scenes negotiations mediated by Qatar, Egypt and the United States could not halt the war apart from a one-week truce beginning in late November.

Ansari said Qatar was "working with our partners" to ensure "an immediate ceasefire in Lebanon" and "work our way back from the current escalation".

"On the other track, the talks about Gaza, we continue with our efforts," he added.

Ansari said it was "too early" to describe a "formal mediation track" in talks between Israel and Hezbollah.

"I don't think we can now say there's a formal mediation track, rather than all channels of communication remain open," he said.

Diplomats had repeatedly said a Gaza ceasefire could help calm regional tensions, including in Lebanon.

But after the 21-day proposal, diplomats said the United States was no longer directly linking its struggling push for a Gaza ceasefire with Lebanon efforts due to the urgency of the Lebanon crisis.