They called on the troops to abandon the base, but the soldiers didn't listen, the demonstrators said. Instead, the troops opened fire at the protesters, injuring at least four people. One of them took a bullet in his chest and is in serious condition, according to protesters.
I know that generally you don't need definite articles when using the expression according to someone or something. But is it possible, in theory, to use one? Or would it sound just plainly wrong to your ear?