quietly kill modelsim from software

I'm trying to launch vsim from C++. I do so using the fork() and exec() model. After calling fork(), I get the child process ID, which I can later use to send a kill signal to that process. However, when I send the SIGTERM signal to Modelsim, the following 3 messages are printed to stderr:

signal sigterm caught... closing vish.

fatal: vsim caught sigterm. closing vsimk kernel.

** fatal: trouble with simulation kernel.

I want to suppress these messages if possible. Is there a way to do that?

vsim version = 10.1d