Mexico¡¯s moderate Finance Minister Carlos Urzua resigned on Tuesday with a letter that shocked markets by citing ¡°extremism¡± in economic policy, before President Andres Manuel Lopez Obrador quickly named a well-regarded deputy minister to replace him.

In the unusually strongly worded resignation note made public on his Twitter account, Urzua said the government was forming economic policy without sufficient foundation.

¡°I¡¯m convinced that economic policy should always be evidence-based, careful of potential impacts and free of extremism, either from the right or the left,¡± Urzua wrote.