Four Americans who traveled to Mexico last week to seek health care got caught in a deadly shootout and were kidnapped by heavily armed men who threw them in the back of a pickup truck, officials from both countries said Monday.

The four were traveling Friday in a white minivan with North Carolina license plates. They came under fire shortly after entering the city of Matamoros from Brownsville, at the southernmost tip of Texas near the Gulf coast, the FBI said in a statement Sunday.

An explosion in a seven-story commercial building in Bangladesh’s capital on Tuesday killed at least 14 people and injured dozens, officials said.

The explosion occurred in Gulistan, a busy commercial area of Dhaka, fire department official Rashed bin Khaled said by phone.

The building contained several stores selling plumbing products and household items, and its first two floors were badly damaged, according to fire officials. It was not immediately clear what caused the explosion.

The Minnesota House approved a $1.9 billion public infrastructure package with bipartisan support Monday evening for fixing up roads, bridges, water systems, college facilities and parks and trails across the state, sending it to the Senate where its fate is less certain.

Most individual projects in the package were unglamorous and noncontroversial, with a focus on maintaining or replacing existing but aging assets in legislative districts statewide. They were split between one piece of legislation that called for $1.5 billion in borrowing, known as a bonding bill, and another that totaled about $400 million in cash.

Anya Capistrant-Kinney can be reached at capi2087@stthomas.edu.