Let us consider a branching process with a continuous time parameter. Suppose that there are $n$ types of particles. Let $\mu_{k1}(t),\dots,\mu_{kn}(t)$ be the numbers of particles of types $T_1,\dots,T_n$ , respectively, generated by a unique particle of type $T_k$ in the time interval $[0,t]$ . Let ${\mathbf a}=\|{a_{ij}}\|$ be the matrix of the first differential moments and $\lambda=\max[\operatorname{Re}\lambda_1,\dots,\operatorname{Re}\lambda_n]$, where $|{{\mathbf a}-\lambda _i{\mathbf E}}|=0$ ( ${\mathbf E}$ is a unit matrix). Theorem 1 gives an asymptotical formula for $Q_k (t)=P\{\sum\nolimits_{j=1}^n{\mu_{kj}}(t)>0\}$, when $t\to\infty$ and ${\mathbf a}$ is an arbitrary matrix. Theorem 2 gives the limit distribution for $${\mathbf P}\left\{{\frac{{\mu_{k1}\left(t\right)}}{t}<y_1,\frac{{\mu_{k2}\left(t\right)}}{t}<y_2,\frac{{B\mu_{k3}\left(t\right)}}{t}<y_3}\right\}$$($\beta>0$being a certain constant) when$t\to\infty $and$a_{11}<0$,$$a_{22}\leq0,a_{33}=0,a_{12}>0,a_{13}\geq0,a_{23}>0,a_{ij}=0,i>j.$$