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We extend the Calder\'on-Zygmund theory for nonlocal equations to stronglycoupled system of linear nonlocal equations $\mathcal{L}^{s}_{A} u = f$, wherethe operator $\mathcal{L}^{s}_{A}$ is formally given by \[ \mathcal{L}^s_{A}u =\int_{\mathbb{R}^n}\frac{A(x, y)}{\vert x-y\vert ^{n+2s}} \frac{(x-y)\otimes(x-y)}{\vert x-y\vert ^2}(u(x)-u(y))dy. \] For $0 < s < 1$ and$A:\mathbb{R}^{n} \times \mathbb{R}^{n} \to \mathbb{R}$ taken to be symmetricand serving as a variable coefficient for the operator, the system underconsideration is the fractional version of the classical Navier-Lam\'elinearized elasticity system. The study of the coupled system of nonlocalequations is motivated by its appearance in nonlocal mechanics, primarily inperidynamics. Our regularity result states that if $A(\cdot, y)$ is uniformlyHolder continuous and $\inf_{x\in \mathbb{R}^n}A(x, x) > 0$, then for $f\inL^{p}_{loc},$ for $p\geq 2$, the solution vector $u\in H^{2s-\delta,p}_{loc}$for some $\delta\in (0, s)$.

Calderon-Zygmund theory for strongly coupled linear system of nonlocal equations with Holder-regular coefficient