At least seven people have died in Texas as Hurricane Beryl continues to move through the US state, according to media reports, while millions remain without power. It will likely take several days to restore the power supply, according to the operator. Some 2 million to 3 million households are affected, the chairman of the company said. Among the dead was a police officer in his car on his way to work in Houston, Mayor John Whitmire told a press conference on Monday. In the neighbouring state of Louisiana, one person also died as a result of the storm, the local sheriff’s office reported. US…