Just weeks after a notable return to Red Sea-Suez Canal shipping routes, Maersk has announced it will once again divert some voyages, including a service connecting to the U.S., away from the volatile Middle East waterway.

"We are currently experiencing unforeseen constraints arising from the wider operating environment in the Red Sea region," stated the world's second-largest carrier in a customer advisory. "After conversations with our security partners, it is clear that these constraints are making it challenging to avoid delays in regard to passage through the area. Therefore, we have made the decision to reroute some of our upcoming sailings on the ME11 and MECL services from Trans Suez to Cape of Good Hope."

Maersk has not provided further details. FreightWaves has reached out for comment.

Of the six MECL services that link the Middle East and India to the U.S. East Coast, Maersk will divert one westbound sailing and two eastbound voyages over the next three weeks.