Hurricane Beryl has impacted Internet and mobile connectivity in Jamaica, Mexico, and Houston, Texas.

The storm has also left millions without power and killed at least 11 people in the Caribbean and eight in Southeast Texas and Louisiana.

Beryl caused connectivity to drop to 42 percent of ordinary levels in Jamaica, outage tracker NetBlocks said. Connectivity fell to similar levels in parts of Mexico, including San Miguel de Cozumel.

Houston, the fourth-largest city in the US, has seen connectivity drop to 61 percent of normal levels, with more than 2.2 million customers left without power around the city.

Nearby Lake Jackson was among the worst hit, with the coastal city seeing connectivity fall to five percent of normal levels. Galveston dropped to 10 percent, and Pearland to 28 percent.

The hurricane is believed to have been intensified by warmer ocean temperatures, with more storms expected in the coming months.

US President Joe Biden has declared the hurricane a federal emergency to cover recovery costs.