WASHINGTON - The US team that tried for more than a month to negotiate a reopening of blocked Pakistani supply routes into Afghanistan is coming home without an agreement, US officials said Monday.

Both sides indicated they remain open to making a deal, but the departure of the negotiators appeared to signal that the Americans see little prospect of a breakthrough any time soon. Adding to the appearance of an impasse was the Pakistanis’ refusal to grant a visiting Pentagon official a meeting with their top general.