Can't suppress messages in blogdown/knitr

Question

Here is a blog post created with blogdown

The R chunk of code begins with

```{r, echo = FALSE, message = FALSE, warning = FALSE}

However, three messages appear each time I read a shapefile using sf::st_read

How do I prevent these messages from appearing in the post?

Does the answer lie in this page about knitr options?

Answer 1

_{Moving an apparent solution initially posted in the comments to a full answer. Reasoning outlined in this meta discussion}

I think st_read is just printing output normally, this won't be affected by message = FALSE or warning = FALSE. If you don't need any output from the chunk you can do results = 'hide' in the chunk options, otherwise I think you can stop it printing using st_read(..., quiet = TRUE)

Originally posted by Marius in the comments