The United States said it carried out a series of airstrikes against targets in Iran overnight, drawing a response from Tehran in what was described as the most serious escalation in the conflict between the two countries in weeks.

Brent crude tops $92 a barrel following first strikes between Washington and Tehran in over a month.

The United States said it carried out a series of airstrikes against targets in Iran overnight, drawing a response from Tehran in what was described as the most serious escalation…