Bundles of pot fell from the sky over San Diego, arriving in an airdrop from a plane that originated in Mexico, federal officials said Tuesday.

U.S. Customs and Border Protection agents seized more than 260 pounds of marijuana bundled and tied to a metal cage from a field near Brown Field Airport, less than two miles north of the U.S-Mexico border.

Agents said the marijuana was delivered to a drop location north of the airport around 4:15 a.m. Monday by an ultra-light aircraft.

The bundles of pot were tied to a cage used to hold cargo in that type of aircraft, officials said.

When federal agents caught up with the illegal delivery, they took two people into custody. Ten bundles of marijuana with an estimated street value of $157,000 were seized, officials said.

CBP's Office of Air and Marine (OAM) spotted and tracked the plane as it crossed the border and returned to Mexico without landing.

The suspects are a 32-year-old undocumented immigrant and a 49-year-old legal permanent resident.

Citizens can report suspicious air and marine activity and remain anonymous by calling (866) AIR-BUST (866-247-2878).